EP2823724A1

EP2823724A1 - Anti-explosion zipper

Info

Publication number: EP2823724A1
Application number: EP14156061.5A
Authority: EP
Inventors: Liqin LIN
Original assignee: ShenZhen YuHong Trading Co Ltd
Current assignee: ShenZhen YuHong Trading Co Ltd
Priority date: 2013-07-09
Filing date: 2014-02-21
Publication date: 2015-01-14

Abstract

The present invention discloses an anti-explosion zipper comprising a zipper left loop, a zipper right loop and a double-tooth zipper head (1); the zipper left loop comprises the left lower teeth (2), left cloth belt (3) and left upper teeth (4); the zipper right loop comprises the right upper teeth (5), right cloth belt (6) and right lower teeth (7); the left lower teeth engage with the right lower teeth; the left upper teeth engage with the right upper teeth; and the double-tooth zipper head engages with the combination of the left lower teeth, right lower teeth, left upper teeth and right upper teeth; the teeth orientation of the left lower teeth and right lower teeth is opposite to that of the left upper teeth and right upper teeth. In the anti-explosion zipper provided by the present invention, the orientation of the upper teeth and lower teeth applies the inverse design, which makes the density of engagement between the teeth smaller and also make the interaction gap between the teeth smaller, which makes the explosion not easy, even when the zipper is bent, the explosion won't happen, which has better security.

Description

Field of Invention

The present invention is involved in the zipper technology field, especially in an anti-explosion zipper.

Description of Related Arts

In our daily life, the suitcase is used to load clothings, baggages and other articles for daily use, especially plays an important role in travel; however the closed function of suitcase is of vital importance. The repetitive opening/closing frequency of the zipper of suitcase is higher, which would make the zipper worn and torn easily, especially in the process of carrying; the strength requirement for zipper is higher. The breakage and explosion of the zipper may cause the property in the suitcase to be lost or stolen.
In consideration of existing problems mentioned above, Chinese application for a patent for the present invention with an application number (No. 201110002230.8 ) applied by this applicant discloses an anti-explosion zipper comprising a zipper left loop, a zipper right loop and a double-tooth zipper head; the zipper left loop comprises left lower teeth, a left cloth belt and left upper teeth; the left lower teeth and left upper teeth are respectively fixed on the edge of upper and lower sides of the left cloth belt; the zipper right loop comprises the right upper teeth, right cloth belt and right lower teeth; the right upper teeth and right lower teeth are respectively fixed on the edge of upper and lower sides of the right cloth belt; the left lower teeth is matched with the right lower teeth, the left upper teeth is matched with the right upper teeth, and the double-tooth zipper header is matched with the combination of the left lower teeth, right lower teeth, left upper teeth and right upper teeth.
The above-mentioned anti-explosion zipper can effectively deal with some defects including that zipper is damaged and torn easily, exploded easily in the process of carrying and not durable, but the following problems still exist: the orientation of the upper and lower teeth is same and the zipper is exploded easily when it is bent. Moreover, a double-tooth zipper header realizes its movement through the engagement with the combination of the left lower teeth, right lower teeth, left upper teeth and right upper teeth, but after the long-time use of the structure, the seizure of the double-tooth zipper head and each tooth will occur and cause the damage and fracture of zipper; in addition, after the long-time use, the gap between the base plate and cover plate will be bigger, which will directly cause the double-tooth zipper head to drop from the center between the zipper left loop and zipper right loop.

Summary of the Present Invention

The technical matter which the present invention will solve is to provide an anti-explosion zipper with better anti-explosion performance.
The technical matter which the present invention will further solve is to provide an anti-explosion zipper with the simple structure, easy usability and the assurance of the correct and smooth movement of the double-tooth zipper header.
In order to solve the above-mentioned technical matter, the present invention applies the following technical solution: an anti-explosion zipper comprising a zipper left loop, a zipper right loop and a double-tooth zipper header; the zipper left loop comprises left lower teeth, a left cloth belt and left upper teeth; the zipper right loop comprises right upper teeth, a right cloth belt and right lower teeth; the left lower teeth engage with the right lower teeth; the left upper teeth engage with the right upper teeth; and the double-tooth zipper head engages with the combination of the left lower teeth, right lower teeth, left upper teeth and right upper teeth; the teeth orientation of the left lower teeth and right lower teeth is opposite to that of the left upper teeth and right lower teeth.
Furthermore, the double-tooth zipper header is equipped with a zipper column, the middle of which fixes an all-in-one guide vane with the zipper column.
Furthermore, the left lower teeth and left upper teeth are respectively fixed on the edge of upper and lower sides of the left cloth belt and are clamped to form a left groove; the right upper teeth and right lower teeth are respectively fixed on the edge of upper and lower sides of the right cloth belt and are clamped to form a right groove; the left side of the guide vane is matched with the left groove and the right side of the guide vane is matched with the right groove.
Furthermore, the double-tooth zipper head is yet equipped with a base plate and a cover plate as well as a bridge of the nose used for the fixation of zipper pulls; the base plate is fixed on the bottom of the zipper column; the cover plate is fixed on the top of the zipper column; and the bridge of the nose is fixed on the cover plate.
Furthermore, a locating ring is fixed on the bridge of the nose and is a closed or unclosed locating ring.
The useful effect of the present invention is: the orientation of the upper teeth of the present invention - anti-explosion zipper is opposite to that of lower teeth, which makes the density of engagement between the teeth smaller and also make the interaction gap between the teeth smaller, which makes the explosion not easy, even when the zipper is bent, the explosion won't happen, which has better security.
Moreover, a guide vane and a zipper column are all-in-one, even after the long-time use, the abrasion or drop will also not occur. The guide vane is fixed on the middle of zipper column, which makes the stresses among the zipper left loop, zipper right loop and double-tooth zipper header balanced - three parts are stressed jointly; during the use, the tension of teeth is relieved and the fatigue degree of zipper is also reduced. The left side of the guide vane is matched with the left groove and the right side of the guide vane is matched with the right groove, which can assure the correct and smooth movement between the double-tooth zipper header and the zipper left loop and zipper right loop, even after repetitively high-frequency opening/closing, the matters like the seizure, explosion or stiff zipper movement will also not occur. In the meanwhile, the present invention is characterized by the easy operation, flexible handling, long service life, low production cost, and so on.
These and other objectives, features, and advantages of the present invention will become apparent from the following detailed description, the accompanying drawings, and the appended claims.

Brief Description of the Drawings

Fig. 1 is the side view of overall structure of the present invention anti-explosion zipper;
Fig. 2 is the front view of the present invention anti-explosion zipper;
Fig. 3 is the sectional view of the present invention anti-explosion zipper;
Fig. 4 is the side view of zipper head of the present invention anti-explosion zipper;
Fig. 5 is the sectional view of zipper head of the present invention anti-explosion zipper.

Detailed Description of the Preferred Embodiment

To more clearly explain the present invention; hereinafter combine with the figures to further describe the present invention.
Refer to Fig. 1∼5. The present invention provides an anti-explosion zipper comprising a zipper left loop, a zipper right loop and a double-tooth zipper head 1; the zipper left loop comprises left lower teeth 2, a left cloth belt 3 and left upper teeth 4, the zipper right loop comprises the right upper teeth 5, a right cloth belt 6 and right lower teeth 7; the left lower teeth engage 2 with the right lower teeth 7, the left upper teeth 4 engage with the right upper teeth 5, and the double-tooth zipper head 1 engages with the combination of the left lower teeth 2, right lower teeth 7, left upper teeth 4 and right upper teeth 5.
The orientation of the left lower teeth 2 and right lower teeth 7 is opposite to that of the left upper teeth 4 and right lower teeth 5, that is, the orientation of the left lower teeth 2 is consistent with that of the right lower teeth 7, the orientation of the left upper teeth 4 is consistent with that of the right upper teeth 5, but the orientation of the left lower teeth 2 and right lower teeth 7 is opposite to that of the left upper teeth 4 and right lower teeth 5. As shown in the Fig. 2, the teeth orientation of the left lower teeth 2 is downward as marking A shows, the teeth orientation of the left upper teeth 4 is upward as marking B shows, then at the moment the teeth orientation of the right lower teeth 7 is consistent with that of the left lower teeth 2 and the teeth orientation of the right lower teeth 5 is consistent with that of the left upper teeth 4. Certainly, it can be also that the orientation of the left lower teeth 2 is upward and the orientation of the left upper teeth 4 is downward, as long as the teeth orientation of both applies the inverse design.
A double-tooth zipper head 1 is equipped with a zipper column 8, the middle of which fixes an all-in-one guide vane 9 with the zipper column 8. The left lower teeth 2 and left upper teeth 4 are respectively fixed on the edge of upper and lower sides of the left cloth belt 3 and are clamped to form a left groove 13; the right upper teeth 5 and right lower teeth 7 are respectively fixed on the edge of upper and lower sides of the right cloth belt 6 and are clamped to form a right groove 14.
The left side 91 of guide vane is matched with the left groove 13 and the right side 92 of guide vane is matched with the right groove 14.
Compared to the existing technical status, the anti-explosion performance of the present invention anti-explosion zipper is more advanced. As the orientation of the upper teeth and lower teeth applies the inverse design, the density of engagement between the teeth is smaller and the interaction gap between the teeth is smaller - which makes the explosion not easy, even when the zipper is bent, the explosion won't happen, which has better security. Moreover, the guide vane 9 and zipper column 8 are all-in-one, even after the long-time use, the abrasion or drop will also not occur. The guide vane 9 is fixed on the middle of zipper column 8, which makes the stresses among the zipper left loop, zipper right loop and double-tooth zipper header 1 balanced - three parts are stressed jointly; during the use, the tension of teeth is relieved and the fatigue degree of zipper is also reduced. The left side 91 of the guide vane is matched with the left groove 13 and the right side 92 of the guide vane is matched with the right groove 14, which can assure the correct and smooth movement between the double-tooth zipper header 1 and the zipper left loop and zipper right loop, even after repetitively high-frequency opening/closing, the matters like the seizure, explosion or stiff zipper movement will also not occur. In the meanwhile, the orientation of the upper teeth and lower teeth applies the inverse design, which makes the density of engagement between the teeth smaller and also makes the interaction gap between the teeth smaller, which makes the explosion not easy. The present invention is characterized by the easy operation, flexible handling, long service life, low production cost, and so on.
In this embodiment, the double-tooth zipper head 1 is yet equipped with a base plate 10 and a cover plate 11 as well as a bridge 12 of the nose used for the fixation of zipper pulls, the base plate 10 is fixed on the bottom of zipper column 8; the cover plate 11 is fixed on the top of zipper column 8; and the bridge 12 of the nose is fixed on the cover plate 11.
In this embodiment, a locating ring 121 is fixed on the bridge 12 of the nose and is a closed or unclosed locating ring. If the locating ring 121 is a closed locating ring, the zipper pulls is fixed inside the closed locating ring at the moment and is used for a long time without replacement; if the locating ring 121 is a unclosed locating ring, replace the zipper pulls depending on the need of users - this way makes users use more conveniently.
Through the improvement of zipper with existing technology, the engagement degree of the invented zipper reaches the most effective embodiment. Compared to the insufficient tension stress in this document, after the improvement of this embodiment, the guide vane 9 can correctly guide the correct movements of the left lower teeth 2, left upper teeth 4, right upper teeth 5, right lower teeth 7 and double-tooth zipper head 1 and the seizure won't happen. At the same time, the double-tooth zipper head won't have any stress point during tearing and will have a double bite force at least to effectively prevent falling and the cloth-explosion between the left cloth belt 3 and the left lower teeth 2 and left upper teeth 4 as well as between the right cloth belt 6 and the right upper teeth 5 and right lower teeth 7. Even though the zipper repeatedly opens/closes with a high frequency, it's also not worn or torn easily, especially in the process of carrying, the strength of zipper obviously emerges, which greatly reduces the probability of breakage or explosion of zipper to prevent the property in the suitcase from being lost or stolen.
One skilled in the art will understand that the embodiment of the present invention as shown in the drawings and described above is exemplary only and not intended to be limiting.

Claims

An anti-explosion zipper comprising a zipper left loop, a zipper right loop and a double-tooth zipper head (1), the zipper left loop comprises left lower teeth (2), a left cloth belt (3) and left upper teeth (4); the zipper right loop comprises right upper teeth (5), a right cloth belt (6) and right lower teeth (7); the left lower teeth (2) engage with the right lower teeth (7); the left upper teeth (4) engage with the right upper teeth (5); and the double-tooth zipper head (1) engages with the combination of the left lower teeth (2), right lower teeth (7), left upper teeth (4) and right upper teeth (5), and characterized by that the teeth orientation of the left lower teeth (2) and right lower teeth (7) is opposite to that of the left upper teeth (4) and right lower teeth (7).
The anti-explosion zipper as recited Claims 1, characterized by that the mentioned double-tooth zipper head (1) is equipped with a zipper column (8), the middle of which fixes an all-in-one guide vane (9) with the zipper column (8).
The anti-explosion zipper as recited Claims 1 or 2, characterized by that the left lower teeth (2) and left upper teeth (4) are respectively fixed on the edge of upper and lower sides of the left cloth belt (3) and are clamped to form a left groove (13); the right upper teeth (5) and right lower teeth (7) are respectively fixed on the edge of upper and lower sides of the right cloth belt (6) and are clamped to form a right groove (14); the left side (91) of the guide vane is matched with the left groove (13) and the right side (92) of the guide vane is matched with the right groove (14).
The anti-explosion zipper as recited of one of Claims 1 to 3, characterized by that the double-tooth zipper head (1) is yet equipped with a base plate (10) and a cover plate (11) as well as a bridge (12) of the nose used for the fixation of zipper pulls, the base plate (10) is fixed on the bottom of the zipper column (8); the cover plate (11) is fixed on the top of the zipper column (8); and the bridge (12) of the nose is fixed on the cover plate (11).
The anti-explosion zipper as recited Claims 4, characterized by that a locating ring (121) is fixed on the bridge (12) of the nose and is a closed or unclosed locating ring (121).