Anti-theft pull, zipper and luggage

Abstract

An anti-theft pull tab is provided, comprising a male pull tab and a female pull tab. The male pull tab has a first magnetic attraction portion and a protrusion, and the female pull tab has a second magnetic attraction portion and a groove portion. The groove portion includes a positioning groove and a sliding groove. The cross-sectional area of ​​the positioning groove is greater than or equal to the cross-sectional area of ​​the protrusion, and is used to accommodate the protrusion for pre-positioning. The positioning groove is located in the middle of the pull tab. The second magnetic attraction portion is located on the side of the female pull tab and near the stop end of the sliding groove. The first magnetic attraction portion and the second magnetic attraction portion face each other to generate a magnetic force that guides the protrusion to slide automatically along the sliding groove. The above-mentioned anti-theft pull tab is simple and convenient to use and has a better anti-theft effect. An anti-theft zipper and an anti-theft bag are also provided.

Description

Technical Field

[0001] This utility model relates to the field of bags and luggage, and specifically to the field of bag pull tabs. Background Technology

[0002] The bags use zippers for closure, but traditional zipper pulls do not have a locking function and cannot prevent theft.

[0003] Chinese patent CN206390500U discloses a customizable bag with an anti-theft device. The zipper pulls are designed as male and female pull tabs. Both the male and female pull tabs have a hanging cord groove and a hanging cord at the top, and a magnet in the middle. The male pull tab has a raised groove at the bottom, and the female pull tab has a recessed groove at the bottom that mates with the raised groove of the male pull tab. When the zipper is closed, the raised and recessed grooves on the male and female pull tabs, along with the principle of opposite poles attracting, cause the male and female pull tabs to engage. Before opening the zipper, the male and female pull tabs must first be separated.

[0004] However, the inventors discovered some problems with this structure. Because the protrusion and groove are located at the lower end of the pull tab, when closing the zipper, the male pull tab needs to be moved from bottom to top so that the protrusion gradually extends into the groove of the female pull tab. The overall travel is relatively long, and when closing, the attraction of the central magnet causes the pull tabs to attract each other first, which is not synchronized with the engagement of the protrusion and groove. The position needs to be adjusted many times during use, resulting in many inconveniences. Utility Model Content

[0005] One objective of this invention is to provide an anti-theft pull tab that is simple and convenient to use and has a better anti-theft effect.

[0006] To achieve the above objectives, the anti-theft pull tab includes a male pull tab and a female pull tab. The male pull tab has a first magnetic attraction part and a protrusion, and the female pull tab has a second magnetic attraction part and a groove. The groove includes a positioning groove and a sliding groove. The cross-sectional area of ​​the positioning groove is greater than or equal to the cross-sectional area of ​​the protrusion and is used to accommodate the protrusion to pre-position it. The positioning groove is located in the middle of the pull tab. The second magnetic attraction part is located on the side of the female pull tab and near the stop end of the sliding groove. The first magnetic attraction part and the second magnetic attraction part face each other to generate a magnetic force that guides the protrusion to slide automatically along the sliding groove.

[0007] In one or more embodiments, the positioning groove includes a beveled cut that slopes outward from the groove opening.

[0008] In one or more embodiments, the sliding groove includes a first inner limiting surface and a second inner limiting surface, and the protrusion includes a protruding column, the protruding column including a cylindrical surface that abuts against at least a portion of the first inner limiting surface and the second inner limiting surface.

[0009] In one or more embodiments, the protruding column is a quadrangular prism.

[0010] In one or more embodiments, the first magnetic attraction portion and the second magnetic attraction portion have rectangular cross-sections.

[0011] In one or more embodiments, the first magnetic attraction part is located inside the male pull tab, and the second magnetic attraction part is located inside the female pull tab.

[0012] In one or more embodiments, the male pull tab further includes a first connector, and the female pull tab further includes a second connector, the first connector and the second connector being used to connect to the zipper pull body.

[0013] Another objective of this utility model is to provide an anti-theft zipper, including a toothed zipper belt, a zipper head body, and the aforementioned anti-theft zipper tab.

[0014] Another object of this utility model is to provide an anti-theft bag, which includes the aforementioned anti-theft pull tab.

[0015] In one or more embodiments, the anti-theft bag is a backpack, handbag, crossbody bag, shoulder bag, or rolling case.

[0016] Since the middle part is the area with the highest probability of contact when the two pull tabs are close together, the above-mentioned pull tab has a positioning groove in the middle part, which increases the probability of the protrusion and the positioning groove engaging. The user can easily put the protrusion into the positioning groove, and under the magnetic attraction of the first magnetic part and the second magnetic part, the protrusion is guided to slide automatically into the sliding groove and terminate at the end of the sliding groove, thus completing the closure of the anti-theft pull tab simply and quickly without multiple adjustments. Attached Figure Description

[0017] The above and other features, properties and advantages of this utility model will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, wherein:

[0018] Figure 1 This is a schematic diagram of one embodiment of the anti-theft pull tab;

[0019] Figure 2 This is a top view of the sliding groove. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments and accompanying drawings. More details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention can obviously be implemented in many other ways different from those described herein. Those skilled in the art can make similar extensions and derivations based on actual application situations without departing from the spirit of the present invention. Therefore, the scope of protection of the present invention should not be limited by the content of this specific embodiment.

[0021] It should be noted that these and other accompanying drawings are merely examples and are not drawn to scale, and should not be used as a limitation on the scope of protection of this utility model.

[0022] Reference Figure 1 As shown, the anti-theft pull tab 1 includes a male pull tab 10 and a female pull tab 20. The male pull tab 10 is provided with a first magnetic attraction part 11 and a protrusion part 12, and the female pull tab 20 is provided with a second magnetic attraction part 21 and a groove part 22. The first magnetic attraction part 11 and the second magnetic attraction part 21 attract each other, and the protrusion part 12 and the groove part 22 cooperate with each other.

[0023] Furthermore, the recess 22 includes a positioning groove 23 and a sliding groove 24, which are connected to each other. The cross-sectional area of ​​the positioning groove 23 is greater than or equal to the cross-sectional area of ​​the protrusion 12, and it is used to accommodate the protrusion 12 to pre-position the protrusion 12. For example, in... Figure 1 In the embodiment shown, the protrusion 12 has a square protrusion, and the corresponding positioning groove 23 also has a square cross-section groove space to accommodate the protrusion 12.

[0024] The positioning groove 23 is located in the middle of the pull tab. Since the middle is the area with the highest probability of contact when the two pull tabs are close together, setting the positioning groove 23 in the middle of the pull tab can increase the probability of the protrusion 12 and the positioning groove 23 engaging. At the same time, the positioning groove cross-sectional area is greater than or equal to that of the protrusion 12, so the user can easily put the protrusion 12 into the positioning groove 23.

[0025] The second magnetic suction part 21 is provided on the side of the female pull tab 20 and near the stop end of the sliding groove 24, the stop end of the sliding groove 24 being located in the opposite direction to the positioning groove 23. (See attached...) Figure 1 In the embodiment shown, the second magnetic suction part 21 is disposed at the top of the female pull tab 20, extends vertically, and is close to the stop end of the sliding groove 24.

[0026] The first magnetic attraction part 11 and the second magnetic attraction part 21 face each other and are also located at the top of the male pull tab 10. The first magnetic attraction part 11 and the second magnetic attraction part 21 attract each other, generating a magnetic force that guides the protrusion 12 located in the positioning groove 23 to automatically slide into the sliding groove 24. In this way, as long as the protrusion 12 is pre-positioned with the positioning groove 23, it will be guided to automatically slide into the sliding groove 24 and move along the sliding groove 24 under the magnetic attraction of the first magnetic attraction part 11 and the second magnetic attraction part 21 near the stop end of the sliding groove 24, and terminate at the stop end of the sliding groove 24, thereby completing the closure of the anti-theft pull tab simply and quickly without having to adjust the relative positions of the male and female pull tabs multiple times.

[0027] To further assist in the pre-positioning between the protrusion 12 and the positioning groove 23, the positioning groove 23 includes a bevel 25. The bevel 25 is inclined from the groove opening to the outside of the groove, that is, from the inside to the outside, so that the opening area of ​​the positioning groove 23 on the surface of the female pull tab is relatively increased, thereby further assisting the protrusion 12 to enter the positioning groove 23. The inclined groove opening provides an angle to guide the protrusion 12 to slide into the positioning groove 23.

[0028] After the protrusion 12 enters the positioning groove 23, to prevent relative movement between the male and female pull tabs, the sliding groove 24 and the protrusion 12 can only move in one direction and cannot rotate freely. Figure 2 The top view of the sliding groove shown shows that the sliding groove 24 includes a first inner limiting surface 241 and a second inner limiting surface 242 facing each other. The protrusion 12 includes a protruding column 120. The protruding column 120 includes a cylindrical surface 121 that abuts against at least a portion of the first inner limiting surface and the second inner limiting surface. By abutting the first inner limiting surface 241 and the second inner limiting surface 242 against the cylindrical surface 121, compared to the linear abutment of the cylindrical surface, rotation of the cylindrical surface can be prevented, thereby preventing the protrusion 12 from rotating after it extends into the sliding groove 24, and ensuring the relative fixation of the male pull tab 10 and the female pull tab 20.

[0029] The protruding column 120 includes, but is not limited to, Figure 1 The square prism shown can also be a hexagonal prism or other irregular shapes. Those skilled in the art will understand that as long as it has a cylindrical surface that matches the inner wall of the sliding groove to prevent rotation, it can be applied to this pull tab.

[0030] Since the magnetic force between the first magnetic attraction part 11 and the second magnetic attraction part 21 is needed to guide the movement of the protrusion, extending the magnetic attraction range of the first and second magnetic attraction parts facilitates the process. Optionally, the first magnetic attraction part 11 and the second magnetic attraction part 21 can be configured with a rectangular cross-section, located at one end of the sliding groove 24. The rectangular design can increase the magnetic force range of the first magnetic attraction part 11 and the second magnetic attraction part 21 to provide sufficient magnetic force.

[0031] To prevent the magnetic parts from detaching, the first magnetic part is located inside the male pull tab, and the second magnetic part is located inside the female pull tab. This concealed design prevents the magnetic parts from falling off during long-term use.

[0032] Back Figure 1 In the embodiment shown, the male pull tab 10 further includes a first connector 13, and the female pull tab 20 further includes a second connector 23. The first connector 13 and the second connector 23 include, but are not limited to, soft cords for connecting to the zipper pull body.

[0033] The first connector 13 and the second connector 23 can be located on the opposite side of the magnetic attraction part of each pull tab, or they can be located at other positions on the pull tab.

[0034] In other embodiments, the male and female pull tabs can also form an integral structure with the zipper pull body.

[0035] The above-mentioned anti-theft pull tabs are used as follows: Using the force of a magnet, when the male and female pull tabs approach each other, the protrusions slide into the grooves, pre-fixing the two male and female pull tabs. Simultaneously, the magnetic force at the ends of the pull tabs guides the misaligned male and female pull tabs to move relative to each other, causing the protrusions to automatically slide into the sliding grooves and move within them, ultimately fixing the male and female tabs in place. Unless the male and female pull tabs can only be slid from one correct direction—that is, the opposite direction of the sliding direction—and the magnetic attraction force is overcome, it is impossible to separate the two pull tabs by applying force from other angles. Throughout the process, the pull tabs are easier to engage, lock, and are less likely to loosen.

[0036] Based on the above description of the anti-theft pull tab, we can also understand an anti-theft zipper, which includes a toothed chain, a zipper pull body, and the aforementioned anti-theft pull tab.

[0037] In some embodiments, the two zipper heads respectively engage with the teeth of a pair of toothed zipper straps, with the pulling directions of the two zipper heads opposite each other. A male and female pull tab are respectively disposed on the two zipper heads. When the two zipper heads are close to each other, the male and female pull tabs engage and secure, thereby providing an anti-theft function. In other embodiments, one zipper head engages with the teeth of a pair of toothed zipper straps. One of the male and female pull tabs is disposed on the zipper head, and the other of the male and female pull tabs is disposed on the bag body. When the zipper head is pulled to its stop, it engages and secures with either the male or female pull tab on the bag body, thereby preventing the zipper from being opened.

[0038] Anti-theft zippers are not limited to being installed on bags; they can also be installed on other zipper components such as clothing.

[0039] It can also be understood that there is a type of anti-theft bag, which includes, but is not limited to, backpacks, handbags, crossbody bags, shoulder bags, or rolling suitcases. This anti-theft bag includes the aforementioned anti-theft pull tabs and has a better anti-theft effect.

[0040] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible variations and modifications without departing from the spirit and scope of the present invention. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims

1. An anti-theft pull tab, comprising a male pull tab and a female pull tab, wherein the male pull tab is provided with a first magnetic attraction portion and a protrusion portion, and the female pull tab is provided with a second magnetic attraction portion and a groove portion, characterized in that, The groove includes a positioning groove and a sliding groove that are connected to each other. The cross-sectional area of ​​the positioning groove is greater than or equal to the cross-sectional area of ​​the protrusion and is used to accommodate the protrusion to pre-position the protrusion. The positioning groove is located in the middle of the pull tab. The second magnetic attraction part is disposed on the side of the female pull tab and near the stop end of the sliding groove. The first magnetic attraction part and the second magnetic attraction part face each other to generate a magnetic force that guides the protrusion to slide automatically along the sliding groove.

2. The theft deterrent pull strip of claim 1 wherein, The positioning groove includes a beveled cut, which is inclined from the groove opening outwards.

3. The theft deterrent pull strip of claim 1 wherein, The sliding groove includes a first inner limiting surface and a second inner limiting surface. The protrusion includes a raised column, which has cylindrical surfaces that abut against at least a portion of the first inner limiting surface and the second inner limiting surface, respectively.

4. The anti-shoplifting tab of claim 3 wherein, The protruding column is a quadrangular prism.

5. The anti-shoplifting pull strip of claim 1 wherein, The first magnetic attraction part and the second magnetic attraction part have rectangular cross sections.

6. The anti-shoplifting pull strip of claim 1 wherein, The first magnetic attraction part is located inside the male pull tab, and the second magnetic attraction part is located inside the female pull tab.

7. The anti-shoplifting tab of claim 1 wherein, The male zipper pull also includes a first connector, and the female zipper pull also includes a second connector. The first connector and the second connector are used to connect to the zipper pull body.

8. Anti-theft zipper, characterized in that, It includes a toothed chain strap, a zipper pull body, and an anti-theft zipper pull tab as described in any one of claims 1-7.

9. A security case, characterized in that Including the anti-theft pull tab as described in any one of claims 1-7.

10. The security case of claim 9, wherein, This anti-theft bag is a backpack.

11. The security case of claim 9, wherein, This anti-theft bag is a handbag.

12. The security case of claim 9, wherein, This anti-theft bag is a crossbody bag.

13. The security case of claim 9, wherein, This anti-theft bag is a shoulder bag.

14. The security case of claim 9, wherein, This anti-theft bag is a rolling suitcase.

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