KR200472756Y1 - Double-layer nylon zipper - Google Patents

Abstract

The dual-layer nylon zipper comprises two zipper tapes each having two consecutive ones located on opposite sides of the band-shaped cloth, respectively, and a pair of zipper tapes, An upper guide frame wall and a lower guide frame wall joined and opposed to each other, a partition wall between the upper guide frame wall and the lower guide frame wall, a nose positioned on the upper guide frame wall, And a zipper slider. Each of the upper guide frame wall and the lower guide frame wall having a first end for holding the flush and a second end having a different length, A receiving space is defined immediately below the second end of the upper guide frame wall outside the second end of the upper guide frame wall.

Description

Double-layer nylon zipper {DOUBLE-LAYER NYLON ZIPPER}

The present invention relates to zip lockers, and more particularly to a practical dual-layer nylon zipper for use in suitcases, backpacks or tents.

The most common nylon zippers are single layer design types. The single-layer nylon zipper is not strong enough. The zipper can be easily opened simply by inserting the tip of the ballpoint pen or the sharp end of the rod into the gap between the two interlocking successions of the single-layer nylon zipper. Therefore, using a single-layer nylon zipper on a suitcase can not effectively protect items in it from loss or theft. To solve this problem, double-layer nylon zippers have been developed. For example, Taiwan Patent Publication No. 441257 discloses a dual-layer nylon zipper having interlocking successive ones disposed on opposite upper and lower sides of each zipper tape to provide an anti-piercing function Lt; / RTI >

However, in conventional double-layer zipper designs (such as US8132303, US7891061), the opposing upper and lower walls of the zipper slide have the same length. When a double-layer zipper is used in a corner of a suitcase or backpack, the difference in the closed angle between the engagements of the two layers is such that the double-layer zipper engages the two layers of the zipper in the corner area The strong tension during closure can not be overcome, so that one of these interlocking layers is closed and the other of these interlocking layers suddenly open.

Further, the intermeshing successions of each of the zipper tapes of the double-layered nylon zipper are formed of coil elements that are continuous in the left or right direction with a plastic interconnection material, and the narrow and long strip- As shown in Fig. When the zipper slider is engaged with the zipper tapes, the perforations of the zipper tapes continue to directly contact the zipper slider. Friction between the upper and lower stranding lines of the zipper tapes and the zipper slider damages the stranding lines, thereby shortening the life of the zipper. Therefore, conventional zippers have many disadvantages.

TW 441257 A1 US 8132303 B1 US 7891061 B1

This invention has been achieved under these circumstances. The main purpose of the present invention is to enhance the positive engagement between the engaging successions and the zipper slider, to provide smooth operation of the zipper slider in the curved corner region, Layer nylon zipper that avoids problems of damage or zip-stop. Therefore, these double-layer nylon zippers are practical for use in travel bags, backpacks, and the like.

Another object of the present invention is to provide a dual-layer nylon zipper that avoids direct contact between the seams and the zipper slider, eliminating the seam wear problems found in prior art designs and preventing breakage damage.

To achieve the above and other objects of the present invention, a dual-layer nylon zipper includes two zipper tapes, and a zipper slider. Wherein each zipper tape comprises a narrow, elongated strip of fabric, each of the two successive ones being located on opposite upper and lower sides of the narrow, elongated strip of fabric, each of which is continuous Wherein each of the coil elements comprises a coil head and a coil body, wherein the coil head has a width greater than the diameter of the coil elements, the coil body being connected to the coil head, Wherein the wire grooves are located in two consecutive coil bodies located on the upper side of the fabric and the stator bands cover the coil body of each of the continuous coil elements below the narrow and long band- The stranded wire is stuck to the narrow and long band-shaped fabric and the band, and the two continuous ones and the band are fixed to the narrow band-like cloth It extends to a portion of the cheontti corresponding to the wiring groove in the long and narrow strip of cloth of a series of these coil elements, each of said coil body on the lower side of in order to. Wherein the zipper slider is coupled between the meshing successions of the two zipper tapes and comprises an upper guide frame wall and a lower guide frame wall opposite to each other and a vertical linkage between the upper guide frame wall and the lower guide frame wall, A nose located on the upper side of the upper guide frame wall, and a pull tab coupled to the nose. Each of the upper guide frame wall and the lower guide frame wall includes opposing first and second ends. The first end of the upper guide frame wall and the first end of the lower guide frame wall are held in a flush manner. Wherein the upper guide frame wall is longer than the lower guide frame wall so that the second end of the upper guide frame wall protrudes beyond the second end of the lower guide frame wall to provide smooth engagement of the engaged, Defines a receiving space below the second end of the upper guide frame wall outside the second end of the lower guide frame wall to prevent the zippers from being stopped or damaged.

Further, the upper guide frame wall includes two downward guide flanges each extending downwardly from the two opposite sides to the lower guide frame wall. Further, each of the downwardly directed guide flanges includes a rounded edge ending at the second end of the upper guide frame wall. The lower guide frame wall includes two upwardly directed guide flanges each extending upwardly from the two opposite sides to the upper guide frame wall. Further, each of the upwardly directed guide flanges includes a rounded edge ending at the second end of the lower guide frame wall. For example, when pulling the zipper slider at the angled corner of the suitcase, the end-edged edge design of each of the upwardly facing guide flanges of the receiving space and the lower guide frame wall engages the zipper slider Effectively interrupting interference between successive ones to provide smooth engagement of the engaged successions and to prevent the zippers from being stopped or damaged.

Further, each of these interlocking successive coil elements of each of the zipper tapes includes a wire groove located in the coil body for receiving a perforation line that secures the individual interlocking successions to the respective narrow, do. The design of the wire grooves prevents direct contact between the stranded wires and the zipper slider, thereby preventing breakage wire damage. Further, the perforations in each of the zipper tapes are hidden in each of the bandages corresponding to the wire grooves on the coil body of each of the coil elements of the series of the above-mentioned lower and narrower band-shaped cloths, ) To aid fast recognition of the front and back sides of the double-layer nylon zipper during bagging.

1 is an exploded view of a dual-layer nylon zipper according to the present invention.
Figure 2 is an elevational view of a zipper slider for a dual-layer nylon zipper according to the present invention.
Fig. 3 corresponds to Fig. 2 when viewed from another angle.
4 is a side view of the zipper slider for a dual-layer nylon zipper according to the present invention.
5 is a top view of the zipper slider for a dual-layer nylon zipper according to the present invention.
6 is a front view of a portion of a dual-layer nylon zipper according to the present invention.
7 is a schematic cross-sectional view of a dual-layer nylon zipper according to the present invention.
8 is a rear view of a portion of a dual-layer nylon zipper according to the present invention.
9 is a schematic cross-sectional view of the zipper tapes of the dual-layer nylon zipper according to the present invention.
Figure 10 is a schematic view of the present invention showing the zipper slider moving relative to the zipper tapes.
FIG. 11 is a schematic application view of the present invention showing a double-layer nylon zipper used in a travel bag.
12 is an opaque elevation view showing another form of the zipper slider according to the present invention.
13 is a side view of the zipper slider shown in Fig.

As shown in FIG. 1, the dual-layer nylon zipper according to the present invention includes two zipper tapes 1 and a zipper slider 2. As shown in FIG.

6, 7 and 1, each of the zipper tapes 1 includes a narrow elongated fabric strip 11, opposing upper sides of the narrow and long band-shaped cloth 11, (12, 12 ') engaging said interlocking series of teeth (12, 12') respectively located on the underside of said narrow and long band-like fabric (11) And a stitching line (13). Further, the narrow and long belt-shaped cloth 11 is a nylon belt-like cloth.

Referring to Figures 6-9, each of the interlocking ones 12, 12 'may include left-handed or right-handed series of coil elements, 121, 121 '. Each of the coil elements 121 and 121 'of the intermeshing successive ones 12 and 12' includes a coil head 122 and 122 'and a coiled coil body 123 , 123 '). As shown in FIGS. 6 and 7, the coil body 123, 123 'defines a wiring groove 124 for receiving the individual seam line 13. 8 and 9, a cloth strip 125 is formed on each of the coil elements 121 'of the interlocking continuous ones 12' on the underside of the narrow, And covers the coil body 123 '. The perforation line 13 is formed in the wiring groove 124 of the coil body 123 of each of the coil elements 121 on the upper side of the narrow band-like fabric 11, the narrow and long band- ) Of the narrow and long strip-like fabric (11) to the upper and lower coil-shaped elements (125) and the respective coil elements (121 ' .

2 to 5, the zipper slider 2 is coupled between the two zipper tapes 1 and includes an upper guide frame wall 21 and an opposing lower guide frame wall 22, A partition wall 23 vertically connected between the guide frame wall 21 and the lower guide frame wall 22, a nose 24 disposed on the upper side of the upper guide frame wall 21, And a pull tab (25) coupled to the second end (24). Each of the upper guide frame wall 21 and the lower guide frame wall 22 includes first ends 211 and 221 and opposed second ends 212 and 222. The first end 211 of the upper guide frame wall 21 and the first end 221 of the lower guide frame wall 22 are disposed in a flush manner. The separation wall 23 is vertically connected between the first end 211 of the upper guide frame wall 21 and the first end 221 of the lower guide frame wall 22. The upper guide frame wall 21 is relatively longer than the lower guide frame wall 22 so that the second end 212 of the upper guide frame wall 21 is connected to the lower guide frame wall 22, Extends beyond the second end 222 and extends into the receiving space 26 just below the second end 212 of the upper guide frame wall 21 outside the second end 222 of the lower guide frame wall 22. [ . 4, a tangent line A to the second end 212 of the upper guide frame wall 21 extending to the end of the second end 222 of the lower guide frame wall 22, With the vertical line B defining an inclusion angle [theta] of 20 [deg.] To 30 [deg.], An optimal accommodation space 26 can be defined. Further, the upper guide frame wall 21 includes two downward guide flanges 213, each of which extends downwardly from the two opposite sides to the lower guide frame wall 22. [ Each of the downwardly directed guide flanges 213 has a chamfered edge 214 that terminates at the second end 212 of the upper guide frame wall 21. Furthermore, the lower guide frame wall 22 includes two upwardly directed guide flanges 223 each extending upwardly from the two opposing side surfaces to the upper guide frame wall 21. [ Each of the upwardly directed guide flanges 223 has a rounded edge 224 ending at the second end 222 of the lower guide frame wall 22.

The two zipper tapes 1 and the zipper slider 2 are assembled to form a double-layer nylon zipper, as shown in Fig. This dual-layer nylon zipper design can be used for suitcase 10, backpack, etc. to protect items stored therein from loss or theft. Depending on the arrangement of these interlocking successions (12) on the opposite upper and lower sides of the narrow and striped fabric (11) of each of the two zipper tapes (1), the double-layer nylon zipper Provides excellent anti-piercing capabilities.

2 to 5, the zipper slider 2 is provided with a padlock (not shown) for locking the zipper slider 2 to a specific part of the travel bag or the backpack in which the double-layer nylon zipper is used, Further comprising one or more eye lugs 27 located above the upper guide frame wall 21 for securing an unauthorized person to open the double-layer nylon zipper .

Referring again to Figures 6, 7 and 1, the individual interlocking successions 12, 12 'are secured to the narrow and long belt-like fabric 11 of the individual zipper tapes 1 Each of the coil elements 121 of the engaging successive ones 12 on the upper side of each of the zipper tapes 1 is provided with a plurality of coil elements 121, Defines a wiring groove (124) on the coil body (123) for receiving an individual seam line (13). (12) on the upper side of the individual zipper tapes (1) to fix the individual continuous ones (12, 12 ') to the individual narrow and long band- Layer nylon zipper by extending each of the stranded wires 13 individually beyond the coil bodies 123 of the coil elements 121 and the wire grooves 124. [ And does not touch the seam lines (13) while moving to open and close, thereby preventing breakage of the seams. 8 and 9, the quintuple band 125 is formed by the engaging successive ones 12 'on the lower side of the narrow and long band-like fabric 11 of each of the zipper tapes 1, Covers the coil body 123 'of each coil element 121'. When the stitching band 13 is stuck to fix the stitching band 125 to the narrow and long band-like fabric 11 of the individual zipper tape 1, the stitching band 13 is stuck to the stitching band 125 So as to prevent direct contact between the puncture wire 13 and the zipper slider 2. Further, the location of the staple band 125 facilitates rapid recognition of the front and back sides of the double-layer nylon zipper.

10 and 11, the double-layer nylon zipper may be installed in the travel bag 10 or the backpack. When the zipper slider 2 is pulled at the corner of the travel bag 10 or the backpack, the ends of each of the upwardly facing guide flanges 223 of the receiving space 26 and the lower guide frame wall 22, The edge 224 design effectively prevents interference between the zipper slider 2 and the engaged ones 12 so as to provide smooth engagement of the engaging successive ones 12, Or damage.

Figs. 12 and 13 show another form of the zipper slider 2. Fig. According to this other aspect, the zipper slider 2 has an upper guide frame wall 21 and a lower guide frame wall 22 opposed to each other, and an upper guide frame wall 21 and a lower guide frame wall 22 between the upper guide frame wall 21 and the lower guide frame wall 22 Two vertically connected separation walls 23, two nose 24 projecting individually from the upper guide frame wall 21 and the lower guide frame wall 22, Includes two pull tabs (25). A double-layer nylon zipper using this other type of zipper slider 2 according to the present invention is practical for use in a tent. Thus, the user can pull the zipper slider of the double-layer nylon zipper inside the tent as well as outside the tent.

Although specific embodiments of the present invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit or scope of the present invention. Accordingly, the present invention is not limited except as by the appended claims.

1: zipper tape 2: zipper slider
11: narrow and long band cloth 12, 12 ': interlocking continuous ones
13: Stranded wire 121, 121 ': Coil element
122, 122 ': coil head 123, 123': coil body
124: wiring groove 125:

Claims (8)

Two zipper tapes; And
A dual-layer nylon zipper comprising a zipper slider engaged between intermeshed successions of the two zipper tapes,
Wherein each of the two zipper tapes comprises a narrow and elongated strip of fabric, each of two successive ones being located on opposite upper and lower sides of the narrow, elongated banded cloth, Wherein each of the coil elements comprises a coil head, the coil head having a width greater than the diameter of the coil elements, the coil body being connected to the coil head,
Wherein the wire grooves are located in two consecutive coil bodies located on the upper side of the fabric and the stator bands cover the coil body of each of the continuous coil elements below the narrow and long band- Wherein the perforations are formed by the narrow and long band-shaped fabric and the continuous (continuous) band-shaped lower band of the narrow and long band-like fabric to be stitched to the band and to fix the two continuous ones and the band-like band to the narrow band- Extending to a portion of the quartz band corresponding to the wiring groove in the coil body of each of the coil elements,
The zipper slider includes an upper guide frame wall and opposed lower guide frame walls, a partition wall vertically connected between the upper guide frame wall and the lower guide frame wall, a nose positioned above the upper guide frame wall, Wherein each of the upper guide frame wall and the lower guide frame wall includes a second end opposed to the first end, the first end of the upper guide frame wall and the lower end of the lower guide frame wall Wherein the first guide frame wall is longer than the lower guide frame wall so that the second end of the upper guide frame wall protrudes beyond the second end of the lower guide frame wall, Defining a receiving space below the second end of the upper guide frame wall outside the second end of the lower guide frame wall Double-layer nylon zipper. A tangent line to the second end of the upper guide frame wall extending to the second end of the lower guide frame wall has a line perpendicular to the upper guide frame wall and the lower guide frame wall Included angle Double-layer nylon zipper, defined as 20 ° to 30 °. 2. The dual layer nylon zipper of claim 1, wherein the upper guide frame wall includes two downward guide flanges each extending downwardly from the two opposite sides to the lower guide frame wall. 4. The double-layer nylon zipper of claim 3, wherein each of the downwardly directed guide flanges includes an angled edge that terminates at the second end of the upper guide frame wall. 2. The double-layer nylon zipper of claim 1, wherein the lower guide frame wall includes two upwardly directed guide flanges each extending upwardly from the two opposing sides to the upper guide frame wall. 6. The double-layer nylon zipper of claim 5, wherein each of the upwardly-directed guide flanges includes a rounded edge ending at the second end of the lower guide frame wall. The dual layer nylon zipper of claim 1, wherein the zipper slider includes at least one idler located in the upper guide frame wall for securing to the pad lock. 2. The method of claim 1, wherein the perforations in each of the zipper tapes are hidden in the bandage corresponding to the wire grooves on the coil body of each of the coil elements of the series below the narrow, Lined double-layer nylon zipper.

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