TW201813538A - Top-wide-bottom-narrow double-layered zipper for luggage with burst resistance and slider thereof enabling slider to be pulled smoothly and providing excellent security and burglarproof performance - Google Patents

Abstract

The present invention relates to a top-wide-bottom-narrow double-layered zipper for luggage with burst resistance and slider thereof, which provides the advantages of simple structure, smooth slider pulling, and excellent security and burglarproof performance. Since the width of lower zipper tape while it is closed is less than the width of the upper zipper tape while it is closed and the outer width of the lower cover plate is also smaller than the outer width of the upper cover plate, so that the gap between the outermost side of the lower cover plate on the lower half of the slider and the edges of two N-shaped plastic strips on the luggage body is enlarged and thus the slider will not touch the N-shaped plastic strips and the slider will be pulled smoothly. Furthermore, since the diameter of nylon thread of wire wound on the lower zipper tape is less than the diameter of nylon thread on the upper zipper tape and the pitches of the helical lines of the upper and lower zipper tapes are equal, the gap between adjacent helical lines of the lower zipper tape should be greater than the gap between adjacent helical lines of the upper zipper tape and this will relatively help the closing of the upper and lower layers of zipper teeth on the left and right sides of zipper tape at the zipper turning point and the smoothness during slider pulling, and thus the pulling of slider at the turning point will be smoother than that of the double-layered zipper with the same dimensions. Moreover, since the closing lines of the upper and lower zipper tapes are not coincident, the time and location when the teeth of the upper zipper start to be engaged will be different from the time and location when the teeth of the lower zipper start to be engaged, such that the upper and lower layers of zippers are closed separately, so as to greatly reduce the resistance for pulling the slider and extend the service life of the zipper.

Description

   Explosion-proof upper and lower narrow double-layer tooth zipper and its slider for luggage   

The present invention relates to an explosion-proof upper wide lower narrow double-layer tooth zipper and a slider for the same, and relates to a related technical field of an explosion-proof upper wide lower narrow double-layer tooth zipper and a slider for the same.

With the development of tourism, luggage is used more and more frequently as the main container for clothes, luggage and other daily necessities. However, the opening and closing of traditional luggage is a single-layered nylon zipper. As long as the left and right chain belts are poked with a nib or similar cone, the left and right chain belts will be separated. Therefore, the anti-theft performance of the single-layer zipper is poor, and it is easy to be damaged after being stolen. Recently, a double-layer tooth zipper 10 (refer to FIG. 1) has appeared, which is composed of an upper chain rack 102 and a lower chain rack 103 above and below the left and right cloth straps 101, and the upper chain rack The width B ′ of 102 and the lower chain rack 103 are the same as the specifications, as shown in FIG. 2, and penetrate into the sliders of the upper and lower traditional structures of the same body, such as Continental No. ZL201210039575.5 “Sandwich nylon "Double-sided tooth zipper and slider and base hot pressing shaping method" invention patent. Although it has explosion-proof function, in the use of hard-shell suitcases, due to the sandwich-type stacking of upper and lower teeth with the same width, At the corner of the arc, the zipper is fastened to the rounded corner of the suitcase. During the pull of the zipper, the slider is twisted and skewed relative to the chain. At the widest part of the lower cover of the lower half of the slider 20 Often, it will touch the contact position 301 of the edge of the N-shaped plastic strip 30 on the left and right side of the two luggage cases (as shown in FIG. 2), resulting in a large and unsmooth pull resistance of the slider, affecting the use of the entire luggage .

In view of the foregoing shortcomings, the present inventor has, through continuous research and improvement, devised an upper and lower narrow double-layer tooth zipper and a slider for the luggage with explosion-proof.

The main purpose of the present invention is to provide an explosion-proof upper and lower narrow double-layer tooth zipper and a slider for luggage, which have the advantages of simple structure, smooth pulling of the slider, and good security and anti-theft performance.

A secondary object of the present invention is to provide an anti-explosion upper wide lower narrow double-layer tooth zipper and a slider for luggage, since the width of the lower chain rack when engaged is smaller than the width of the upper chain rack when engaged, relatively The outer width of the lower cover is also smaller than the outer width of the upper cover. In this way, the gap between the outermost part of the lower cover of the lower half of the slider and the edge of the N-shaped plastic strip on the two luggage cases is increased. Will touch the N-type plastic strip, which will be smooth when the slider is pulled.

Yet another object of the present invention is to provide an anti-explosion upper and lower narrow double-layer tooth zipper and a slider for luggage. Since the diameter of the nylon single wire of the core wire wound on the lower chain rack is smaller than the nylon single wire on the upper chain rack Diameter, when the spiral pitch of the upper chain rack and the lower chain rack are the same, the gap between adjacent spirals on the lower chain rack is bound to be larger than the gap between adjacent spirals on the upper chain rack. When the zipper is sewn to the corner of the luggage, because the curvature of the upper and lower zipper is different, the radius of curvature of the lower chain rack is small, and the zipper is bent downward. The upper chain rack is pulled and the lower chain rack is affected. Press, the distance on the lower chain rack becomes smaller, and the chain teeth squeeze each other. When the gap between adjacent spirals on the lower chain rack of the present invention is larger than the gap between adjacent spirals on the upper chain rack, the situation where the teeth on the lower chain rack squeeze each other can Compared with the commonly used upper and lower chain racks, the zipper with the same specifications is improved, and the gap between adjacent spirals between the upper and lower layers will not be very different, which is beneficial to the left and right chain belts at the corner of the zipper. The smoothness of the upper teeth and the lower teeth of the sprocket and the slider when pulling, so the degree of sliding of the slider at the corners will be smoother than a double-layer tooth zipper of the same specification.

Another object of the present invention is to provide an explosion-proof upper and lower narrow double-layer tooth zipper and a slider for luggage. Since the width difference between the upper chain rack and the lower chain rack is small, in order to prevent sewing Wrong, the color of the core wires in the upper chain rack and the lower chain rack are different to show the difference.

Another object of the present invention is to provide an anti-explosion upper and lower narrow double-layer tooth zipper and its slider for luggage. Since the upper and lower chain racks and tooth lines do not overlap, the upper zipper elements start to mesh. The time and position are different from the time and position when the upper teeth of the zipper begin to engage (while the zipper begins to engage, the drag of the slider is the largest. The traditional double-layer tooth zipper has the same size as the upper and lower zipper, and the teeth line Overlapping, the drag resistance of the slider is twice that of the single-layer zipper, and the resistance is greater.) In the present invention, the upper and lower zipper chains are staggered, and the upper and lower zipper are separated to close the teeth, which greatly reduces the The resistance when the slider is pulled also extends the service life of the zipper.

Another object of the present invention is to provide an upper-lower narrow double-layer tooth zipper and a slider for the luggage which have explosion-proof, which retains the advantages of the double-layer zipper explosion-proof. It is smaller than the width of the upper chain rack when the teeth are engaged, so that the outer width of the lower cover is smaller than the outer width of the upper cover, so that the slider can be pulled easily and smoothly regardless of the linear position or the curved position of the zipper, and it is also reduced. In order to reduce the manufacturing cost, the original sewing equipment for sprocket racks and tapes can still be used, and the versatility is good.

The utility model relates to an explosion-proof upper and lower narrow double-layer tooth zipper and a slider for the luggage. The zipper comprises an upper and lower double-layer tooth zipper, and a slider for providing the double-layer tooth zipper to be used for opening and closing. The double-layer tooth zipper described above is sewn above and below the left and right cloth belts, respectively, with an upper chain rack and a lower chain rack to form left and right double chain racks, respectively. The upper chain rack and the lower layer The sprocket racks are made of nylon single-line spirals around the central core line. It is characterized in that the width of the lower sprocket rack when engaged with the teeth is smaller than the width of the upper sprocket rack when engaged with teeth, and the upper and lower sprocket racks The pitch of the upper spiral is the same, and the upper and lower layers are aligned to ensure that when the upper chain rack and the lower chain rack are sewn to the tape, the needle and the harness are smoothly inserted in the gap of the spiral; the slider includes Upper cover and lower cover. Side shields are provided on the left and right sides of the upper cover and the lower cover. The upper cover and the lower cover are connected by a base core. A partition and a guide upper layer are fixed on the base core. The tongue, the tongue and the upper cover of the sprocket and the lower sprocket An upper cavity for accommodating the upper chain rack is formed therebetween, and a lower cavity for accommodating the lower chain rack is formed between the tongue piece and the lower cover. The outer width of the lower cover is smaller than the outer width of the corresponding upper cover; The core wires in the sprocket rack and the lower chain rack are different in color, and the diameter of the nylon single wire surrounding the core wire on the lower chain rack is smaller than the diameter of the nylon single wire wound on the upper chain rack. The left side of the tongue is above, below and right. The upper and lower sides are provided with curved surfaces that match the upper and lower chain racks, and the side guards on the left and right front end portions of the upper and lower cover plates are flared mouths, and the open ends of the flared mouths are corresponding chains. The teeth line of the rack, and the teeth of the upper chain rack on the upper cover plate do not coincide with the teeth of the lower chain rack on the lower cover; in addition, the lower cavity is narrower and shorter than the upper cavity, and The lower cavity and the upper cavity are symmetrical about the left and right centers, respectively.

     [Learning]     

(10) ‧‧‧Double tooth zipper

(101) ‧‧‧Tape

(102) ‧‧‧Upper chain rack

(103) ‧‧‧Lower chain rack

(20) ‧‧‧Slider

(30) ‧‧‧N plastic strip

(301) ‧‧‧touch position

(B ’) ‧‧‧Width

     [This creation]     

(1) ‧‧‧Double tooth zipper

(2) ‧‧‧Slider

(3) ‧‧‧Tape

(4) ‧‧‧Upper chain rack

(40) (50) ‧‧‧Focus line

(5) ‧‧‧Lower chain rack

(7) ‧‧‧Core

(8) ‧‧‧Lower nylon single thread

(9) ‧‧‧Upper nylon single thread

(10) ‧‧‧Harness

(11) ‧‧‧Top cover

(12) ‧‧‧Lower cover

(13) ‧‧‧Side Guard

(14) ‧‧‧Basic Heart

(15) ‧‧‧ Tongue

(16) ‧‧‧arc surface

(17) ‧‧‧Upper cavity

(18) ‧‧‧Lower cavity

(19) ‧‧‧N plastic strip

(A) (B) ‧‧‧Width

(C) (D) ‧‧‧Outer width

(F) ‧‧‧Gap

(L) ‧‧‧Pitch

(S) ‧‧‧ Clearance

FIG. 1 is a front view of a conventional double-layer tooth zipper.

Fig. 2 is a cross-sectional view of a conventional double-toothed zipper sewn on a suitcase.

FIG. 3 is a front view of an explosion-proof upper and lower narrow double-layer tooth zipper and a slider used for the luggage according to the embodiment of the present invention.

FIG. 4 is a front view of an explosion-proof double-layer tooth zipper for upper wide and narrow narrow luggage according to the embodiment of the present invention.

Fig. 5 is a front view of a slider in the embodiment of the present invention.

FIG. 6 is a perspective view of the front side of the slider in the embodiment of the present invention.

Fig. 7 is a perspective view of the rear side of the slider in the embodiment of the present invention.

FIG. 8 is a bottom view of the slider in the embodiment of the present invention.

FIG. 9 is a front view of the left double-layer toothed belt in the embodiment of the present invention.

FIG. 10 is a front view of the right double-layer toothed belt in the embodiment of the present invention.

FIG. 11 is an enlarged plan view of an explosion-proof double-layer tooth zipper for upper wide and narrow narrow luggage in the closed state according to the embodiment of the present invention.

Fig. 12 is a cross-sectional view of an embodiment of the present invention sewn on a suitcase.

The present invention is an explosion-proof upper and lower narrow double-layer tooth zipper and a slider for the luggage. Referring to FIG. 3, a structural schematic diagram of the present invention is shown, including a double-layer tooth zipper 1 with upper and lower layers (refer to FIG. 3). 4), and a slider 2 (refer to FIG. 5 to FIG. 8) for providing the double-toothed zipper 1 to be used for opening and closing. The double-toothed zipper 1 is provided with a left and right cloth belt 3 (see FIG. 4). The upper and lower chain racks 4 and 5 are respectively sewn above and below to form a left double-layer toothed belt (see FIG. 9) and a right double-layer toothed belt (see FIG. 10). The upper chain rack 4 and the lower chain rack 5 are made of nylon single wires 8, 9 spirally wound around the central core wire 7 (refer to FIG. 11). The upper chain rack 4 and the lower chain rack 5 The core wires 7 (refer to FIG. 4) are different in color. The diameter of the lower nylon single wire 8 surrounding the core wire 7 (refer to FIG. 4) on the lower chain rack 5 is smaller than the diameter of the upper nylon single wire 9 around the core wire 7 wound on the upper chain rack 4. The upper chain rack 4 can use a standard chain rack such as a sprocket of a seventh or eighth or tenth zipper, while the lower chain rack 5 has a width A (refer to FIG. 4) that is smaller than the upper chain rack. The width B (refer to Fig. 4) when the teeth are engaged. At the same time, the pitch L (refer to Fig. 11) of the helical line on the upper chain rack 4 and the lower chain rack 5 is the same, and the upper and lower layers are aligned to ensure the upper chain teeth. When the bar 4 and the lower sprocket rack 5 are sewn to the tape 3, the needle and the wire harness 10 are smoothly inserted into the gap F (see FIG. 11) of the spiral. The slider 2 (refer to FIG. 5) includes an upper cover plate 11 and a lower cover plate 12. Side shields 13 are provided on the left and right sides of the upper cover plate 11 and the lower cover plate 12. The side guards 13 at the front end portions of the left and right sides of the lower cover plate 12 are flared mouths, and the open ends of the flared mouths are the teeth lines 40 and 50 of the corresponding sprocket racks (refer to FIG. 8), while the The upper sprocket line 4 (refer to FIG. 8) and the lower sprocket line 5 (see FIG. 8) on the lower cover plate 12 do not overlap, as shown in FIG. 8. The tooth line 50 is in front of the upper toothed rack 4 and the tooth line 40, and of course, the tooth line 50 may be provided at the back. A base core 14 (refer to FIG. 5) is connected between the upper cover plate 11 and the lower cover plate 12. A tongue piece 15 perpendicular to the base core 14 is fixed on the base core 14, and the upper chain is connected by the tongue piece 15. The rack 4 and the lower chain rack 5 play a role of separation and guidance. The tongue piece 15 is provided with four curved surfaces 16 (refer to FIG. 5) on the left upper side, the lower right side, and the upper and lower right sides of the tongue piece 15 to match the upper layer rack 4 and the lower layer rack 5 (refer to FIG. 5). An upper cavity 17 (refer to FIG. 5) is formed between the tongue 15 and the upper cover plate 11 to accommodate the upper chain rack 4, and a lower shape to accommodate the lower chain rack 5 is formed between the tongue 15 and the lower cover 12. Cavity 18 (refer to FIG. 5), the outer width C of the lower cover plate 12 is smaller than the outer width D of the upper cover plate 11, and the lower cavity 18 is narrower and shorter than the upper cavity 17, and the lower cavity 18 and the upper cavity 17 The left and right centers are symmetrical.

According to the above scheme, a double-layer tooth zipper 1 and a slider 2 for the luggage which have explosion-proof upper width and lower width are designed to be sewn on a suitcase as shown in FIG. 12. The external width is smaller than the external width of the upper cover plate 11. In this way, the gap S between the outermost side of the lower cover plate 12 in the lower half of the slider 2 and the edge of the N-shaped plastic strip 19 on the two luggage cases is larger than that in FIG. Then, there will be no touch and friction between each other.

In summary, the present invention can be summarized to have the following enhancement effects:

1. Since the width A of the lower chain rack 5 is smaller than the width B of the upper chain rack 4 when it is engaged, the outer width C of the lower cover 12 is also smaller than the outer width D of the upper cover 11. 2 The gap S between the outermost side of the lower cover 12 on the lower half and the edge of the N-shaped plastic strip 19 on the two luggage cases is increased, and the slider 2 will not touch the N-shaped plastic strip 19. 2It will be smooth when pulled.

2. Since the diameter of the nylon single wire 8 of the core wire 7 wound on the lower chain rack 5 is smaller than the diameter of the nylon single wire 9 on the upper chain rack 4, the spiral pitch L of the upper chain rack 4 and the lower chain rack 4 are the same. In this case, the gap between adjacent spirals on the lower chain rack 5 is bound to be larger than the gap between adjacent spirals on the upper chain rack 4. When the zipper is sewn to the corner of the luggage, the curvature of the upper and lower layers of the zipper is different, the radius of curvature of the lower chain rack 5 is small, and the zipper is bent downward. The upper chain rack 4 is pulled, and the lower chain tooth When the bar 5 is pressed, the distance on the lower sprocket rack 5 becomes smaller, and the sprocket teeth squeeze each other. When the gap between the adjacent spirals on the lower chain rack 5 of the present invention is larger than the gap between the adjacent spirals on the upper chain rack 4, the teeth on the lower chain rack 5 are pressed against each other. The situation can be improved compared with the commonly used upper and lower chain racks with the same specifications of the zipper, the gap between adjacent spirals between the upper and lower layers will not be very different, which is conducive to the left and right side chains at the corner of the zipper The combined teeth of the upper and lower sprockets and the smoothness of the slider 2 when pulled, so the degree of sliding of the slider 2 at the corners is smoother than a double-layer zipper of the same specification.

3. Due to the small difference in width between the upper chain rack 4 and the lower chain rack 5, in order to prevent mistakes in sewing, the core wire 7 in the upper chain rack 4 and the lower chain rack 5 are different in color to show the difference. .

4. Because the upper and lower sprocket racks 4 and 5 are not coincident with each other, the time and position of the sprocket teeth of the upper zipper start to be different from the time and position of the sprocket teeth of the upper zipper. At the beginning of the meshing, the pull resistance of the slider is the largest. Because the upper and lower layers of the traditional double-layer tooth zipper are the same in size and coincide with the tooth line, the drag of the slider is twice the resistance of the single-layer zipper. In the present invention, the upper and lower layers of the toothed racks 4 and 5 are staggered with the teeth lines 40 and 50, so that the upper and lower layers of the zipper are separated from each other, greatly reducing the resistance when the slider 2 is pulled, and also extending the use of the zipper. life.

5.Retains the advantages of double-layer tooth zipper explosion-proof, because the width A when the lower chain rack 5 is engaged is smaller than the width B when the upper chain rack 4 is engaged, and the outer width C of the lower cover 12 is smaller than the upper The outer width D of the cover plate 11 enables the slider 2 to be pulled easily and smoothly regardless of the linear position or the bending position of the zipper, and also reduces the manufacturing cost. The original sewing equipment for the sprocket and tape can still be used. Continue to use, good versatility.

In summary, the present invention does have its industrial use value, and it is applied for as an invention patent. We invite the examiner of Jun Bureau to examine it carefully and grant the patent.

However, the above are only the preferred embodiments of the present invention. When the scope of implementation of the present invention cannot be limited by it, all equivalent changes and modifications made in accordance with the scope of the patent application for the present invention should still be covered by the present invention. Within range.

Claims (7)

    The utility model relates to an explosion-proof upper and lower narrow double-layer tooth zipper and a slider for the luggage. The zipper comprises an upper and lower double-layer tooth zipper, and a slider for providing the double-layer tooth zipper to be used for opening and closing. The double-layer tooth zipper described above is sewn above and below the left and right cloth belts, respectively, with an upper chain rack and a lower chain rack to form left and right double chain racks, respectively. The upper chain rack and the lower layer The sprocket racks are made of nylon single-line spirals around the central core line. It is characterized in that the width of the lower sprocket rack when engaged with the teeth is smaller than the width of the upper sprocket rack when engaged with teeth, and the upper and lower sprocket racks The pitch of the upper spiral is the same, and the upper and lower layers are aligned to ensure that when the upper chain rack and the lower chain rack are sewn to the tape, the needle and the harness are smoothly inserted in the gap of the spiral; the slider includes Upper cover and lower cover. Side shields are provided on the left and right sides of the upper cover and the lower cover. The upper cover and the lower cover are connected by a base core. A partition and a guide upper layer are fixed on the base core. The tongue, the tongue and the upper cover of the sprocket and the lower sprocket Receiving cavity is formed on the upper layer of the fastener element row is formed at the lower strand of the rack receiving cavity between the tongue and the lower cover plate, the cover plate is smaller than the width of the profile contour corresponding to the width of the cover plate.         As described in item 1 of the scope of the patent application, the upper and lower narrow double-layer toothed zippers and pullers for luggage which are explosion-proof, wherein the core wires in the upper chain rack and the lower chain rack have different colors.         The upper and lower narrow double-layer tooth zipper and its slider for explosion-proof, as described in item 1 of the scope of patent application, wherein the diameter of the nylon single wire surrounding the core wire on the lower chain rack is smaller than that of the upper chain rack. Diameter of nylon single wire.         According to item 1 of the scope of the patent application, the luggage has an explosion-proof upper and lower narrow double-layer tooth zipper and a slider, wherein the tongue is provided with upper teeth on the left side, the lower side and the right side. A curved surface that matches the underlying sprocket.         As described in item 1 of the scope of the patent application, the upper and lower double-layer tooth zipper and the slider for explosion-proof upper and lower covers for luggage have side bellows at the front end portions of the left and right sides of the upper and lower cover plates. The open end of the bell mouth is the tooth line of the corresponding sprocket, and the tooth line of the upper sprocket on the upper cover does not coincide with the tooth line of the lower sprocket on the lower cover.         According to item 1 of the scope of the patent application, the upper and lower narrow double-layer tooth zipper and the slider for explosion-proof, which are used for luggage have an explosion-proof, wherein the lower cavity is narrower and shorter than the upper cavity.         According to item 1 or item 6 of the scope of the patent application, the upper and lower narrow double-layer tooth zipper and the slider for explosion-proof, which are used for luggage have explosion-proof, wherein the lower cavity and the upper cavity are symmetrical about left and right centers, respectively.