Double-split puller group and double-split zipper

Abstract

The invention provides a double-split puller set and a double-split zipper. The fixing effect can be improved by applying material characteristics. The double-split puller group is suitable for being mounted on a zipper chain in groups to form a double-split zipper. The double-split slider group includes: a first slider made of a resin material and having a first rear end portion; and a second slider made of a resin material and having a second rear end portion, in which the first rear end portion of the first slider and the second rear end portion of the second slider are provided facing each other, and the first slider is provided at the first rear end portion with an engagement protrusion protruding from one of an upper wing plate and a lower wing plate thereof. The clamping convex part extends towards the second rear end part of the opposite second puller, and the first rear end part is provided with a concave part between the other one of the upper wing plate and the lower wing plate and the clamping convex part, and the second rear end part is inserted into the concave part; and the first size of the concave part of the first rear end part in the direction corresponding to the clamping convex part is smaller than the second size of the second rear end part in the direction.

Description

Technical Field

[0001] The invention relates to the technology of the zipper field, and in particular to a double-open-end slider group and a double-open-end zipper. Background Art

[0002] A common fastener usually includes a pair of fastener chains consisting of a strip-shaped fastener tape and a plurality of chain elements arranged on the fastener tape, and a slider installed on the zipper chain to open or close the chain elements by sliding, and a tab pull can also be provided on the slider according to the needs. Furthermore, a pair of sliders (hereinafter referred to as a double-open-tail slider group) arranged opposite to each other can be installed on the zipper chain to form a double-open-tail zipper. The double-open-tail means that the sliders installed in groups on the zipper chain and arranged opposite to each other can open or close the chain elements by sliding from the opposite sides of the zipper chain, thereby opening or closing at least one of the opposite sides of the zipper chain respectively.

[0003] Furthermore, in the prior art, the double-open-tail slider group can be temporarily fixed to each other via its own fixing structure, so as to facilitate the insertion of an opening member (e.g., an insert rod or a seat rod) provided on the zipper chain and passing through the interior of the double-open-tail slider group into the interior of the double-open-tail slider group. However, if the double-open-tail slider group is made of metal, its fixing structure may be difficult to fit tightly due to manufacturing tolerances. Moreover, the practice of providing a fixing structure on the double-open-tail slider group also causes the opening member (e.g., an insert rod or a seat rod) to easily slip out of the double-open-tail slider group due to the looseness caused by shaking the slider. As such, it is necessary to improve this type of double-open-tail slider group that is fixed by its own fixing structure. Summary of the invention

[0004] The invention provides a double-open-tail slider set and a double-open-tail zipper, which can improve the fixing effect by applying material properties.

[0005] An embodiment of the present invention provides a double open-tail slider group, which is suitable for being installed in groups on a zipper chain to form a double open-tail zipper. The double open-tail slider group includes: a first slider, which is made of a resin material and has a first rear end portion; and a second slider, which is made of a resin material and has a second rear end portion, wherein the first rear end portion of the first slider and the second rear end portion of the second slider are arranged opposite to each other, the first slider is provided with a snap-fitting protrusion protruding from one of its upper wing plate and lower wing plate at the first rear end portion, and the snap-fitting protrusion extends toward the second rear end portion of the second slider opposite to it, and the first rear end portion is formed with a recess for inserting the second rear end portion between the other of the upper wing plate and the lower wing plate and the snap-fitting protrusion, and the first dimension of the recess of the first rear end portion in the direction corresponding to the snap-fitting protrusion is smaller than the second dimension of the second rear end portion in the direction.

[0006] In an embodiment of the present invention, when the second rear end portion is inserted into the recessed portion of the first rear end portion, the engaging protrusion is flexibly deformed outward and abuts against an outer surface of the second rear end portion.

[0007] In an embodiment of the present invention, the engaging protrusion is provided on the upper wing plate, and the recess is formed between the engaging protrusion and the inner surface of the lower wing plate.

[0008] In an embodiment of the present invention, the lower wing plate of the first slider is provided with an extending protrusion extending further rearward than the lower flange of the first slider, the recess is formed between the engaging protrusion and the extending protrusion, and when the second rear end portion is inserted into the recess of the first rear end portion, the engaging protrusion and the extending protrusion are flexibly deformed outward to clamp the second rear end portion.

[0009] In an embodiment of the present invention, the locking protrusion is arranged on the upper side of the upper wing plate in the thickness direction, and the extension protrusion is arranged on the lower side of the lower wing plate in the thickness direction, and extends toward the second rear end portion of the second slider opposite to the locking protrusion, and the first dimension of the recess is the distance between the inner surface of the locking protrusion and the inner surface of the extension protrusion in the thickness direction corresponding to the locking protrusion, and the second dimension is the thickness of the second rear end portion in the thickness direction, and when the second rear end portion is inserted into the recess of the first rear end portion, the locking protrusion and the extension protrusion clamp the second rear end portion in the thickness direction.

[0010] In an embodiment of the present invention, the locking protrusion is further arranged on the outer side of the upper wing plate in the width direction and is provided with a pair, the extending protrusion is further arranged on the outer side of the lower wing plate in the width direction and is provided with a pair, the first dimension of the recess is the distance between the inner surfaces of a pair of the locking protrusions in the width direction corresponding to the locking protrusions, the second dimension is the width of the second rear end portion in the width direction, and when the second rear end portion is inserted into the recess of the first rear end portion, at least one pair of the locking protrusions clamps the second rear end portion in the width direction.

[0011] In an embodiment of the present invention, the thickness of the extending protrusion is smaller than the thickness of the lower wing plate, so that a step portion is formed at the first rear end portion to accommodate the second rear end portion.

[0012] In an embodiment of the present invention, the inner surface of the locking protrusion is provided with a fixing protrusion protruding toward the recess, and when the second rear end portion is inserted into the recess of the first rear end portion, the fixing protrusion protrudes toward the second rear end portion and abuts against the outer surface of the second rear end portion.

[0013] In an embodiment of the present invention, the first slider is a lower slider and the second slider is an upper slider.

[0014] An embodiment of the present invention further provides a double open-end zipper, comprising: a zipper chain; and the double open-end slider groups, which are installed in groups on the zipper chain.

[0015] In an embodiment of the present invention, the double-open-tail zipper further includes: an opening piece passing through the inside of the first slider and the second slider.

[0016] Based on the above, in the double open-tail slider group and the double open-tail zipper of the present invention, the first slider made of resin material and the second slider made of resin material are arranged opposite to each other at the rear end, and the first rear end is provided with a snap-fitting protrusion extending toward the opposite second rear end, and a recess is formed for the second rear end to be inserted. In addition, the first dimension of the recess of the first rear end portion in the direction corresponding to the snap-fitting protrusion (for example, the rear direction or the width direction) is smaller than the second dimension of the second rear end portion in the direction. In this way, the second rear end portion can be inserted into the smaller recess of the first rear end portion through the flexible deformation of the resin material for fixing, and the recess tightly covers the second rear end portion through the elastic force generated by the flexible deformation of the resin material. Furthermore, the double open-tail slider group has a good fixing effect and is not easy to loosen due to shaking. Accordingly, the double open-tail slider group and the double open-tail zipper of the present invention can apply material properties to improve the fixing effect.

[0017] In order to make the above features and advantages of the present invention more clearly understood, embodiments are given below with reference to the accompanying drawings for detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of a double open-tail slider assembly in a fixed state according to an embodiment of the present invention;

[0019] Figure 2 yes Figure 1 A schematic side view of the double open-tail slider assembly in a fixed state is shown;

[0020] Figure 3 yes Figure 1 A schematic cross-sectional view of the double open-tail slider assembly in a fixed state;

[0021] Figure 4 yes Figure 1 A three-dimensional schematic diagram of a first slider in a double-open-end zipper shown;

[0022] Figure 5 yes Figure 4 A schematic diagram of the rear side of the first slider shown;

[0023] Figure 6 yes Figure 1 A three-dimensional schematic diagram of a second slider in a double-open-end zipper shown;

[0024] Figure 7 yes Figure 1 A top view schematic diagram of a double open-end slider assembly applied to a double open-end zipper;

[0025] Figure 8 yes Figure 7 The cross-sectional view of the double open-end zipper inside the double open-end slider assembly is shown.

[0026] Description of reference numerals:

[0027] 50: Double open tail zipper;

[0028] 52: zipper chain;

[0029] 52a: zipper tape;

[0030] 52b: chain teeth;

[0031] 54: Open the item;

[0032] 54a: plug;

[0033] 54b: seat bar;

[0034] 56a: lower stop portion;

[0035] 56b: locking protrusion;

[0036] 56c: Locking recess;

[0037] 100: Double open-tail slider set;

[0038] 110: first slider;

[0039] 110a: first rear end portion;

[0040] 111, 121: upper wing plate;

[0041] 112, 122: lower wing plate;

[0042] 113, 123: guide column;

[0043] 114, 124: upper flange;

[0044] 115, 125: lower flange;

[0045] 116, 126: pull tab mounting column;

[0046] 117, 117A, 117B: engagement protrusions;

[0047] 117c: fixed convex part;

[0048] 118: concave part;

[0049] 119, 119A, 119B: extended convex portion;

[0050] 119S: Step difference part;

[0051] 120: second slider;

[0052] 120a: second rear end portion;

[0053] D1, D2: distance;

[0054] L: length direction;

[0055] T: thickness direction;

[0056] T1, T2, T3: thickness;

[0057] W: width direction;

[0058] W1: Width. DETAILED DESCRIPTION

[0059] Figure 1 1 is a three-dimensional schematic diagram of a double open-tail slider assembly in a fixed state according to an embodiment of the present invention. Figure 2 yes Figure 1 The schematic side view of the double open-tail slider assembly in a fixed state is shown. Figure 3 yes Figure 1The cross-sectional view of the double open-tail slider assembly in a fixed state is shown. Figure 4 yes Figure 1 The three-dimensional schematic diagram of the first slider in the double-open-end zipper shown, Figure 5 yes Figure 4 The rear side schematic diagram of the first slider shown in FIG. Figure 6 yes Figure 1 The three-dimensional schematic diagram of the second slider in the double-open-end zipper shown, Figure 7 yes Figure 1 The schematic top view of the double open-end slider assembly shown is applied to the double open-end zipper. Figure 8 yes Figure 7 The cross-sectional view of the double-open-end zipper inside the double-open-end slider assembly is shown in FIG. Figures 1 to 8 The specific structures of a double open-end slider assembly 100 and a double open-end zipper 50 using the double open-end slider assembly 100 according to an embodiment of the present invention are described, but the present invention is not limited thereto and can be adjusted according to needs.

[0060] Please refer to Figures 1 to 6 In this embodiment, the double open-tail slider set 100 includes a first slider 110 and a second slider 120. The first slider 110 is made of a resin material and has a first rear end portion 110a. The second slider 120 is made of a resin material and has a second rear end portion 120a. The first rear end portion 110a of the first slider 110 and the second rear end portion 120a of the second slider 120 are disposed opposite to each other. Figure 7 As shown, the double open-end slider set 100 is suitable for being installed in groups on the zipper chain 52 to form the double open-end zipper 50. The double open-end zipper 50 includes the zipper chain 52 and the double open-end slider set 100 installed in groups on the zipper chain 52. The double open-end slider set 100 is temporarily fixed to each other when approaching the end of the zipper chain 52 so as to open the opening member 54 (such as Figure 8 As shown in FIG. 1 , the double-open-tail slider set 100 has a good fixing effect to prevent the opening member 54 from sliding out (as described later). However, the present invention does not limit the application mode of the double-open-tail slider set 100 on the double-open-tail zipper 50, which can be adjusted according to needs.

[0061] Specifically, in this embodiment, if Figures 1 to 5As shown, the first slider 110 has an upper wing plate 111 and a lower wing plate 112 arranged opposite to each other, a guide column 113 connected between the upper wing plate 111 and the lower wing plate 112, a pair of upper flanges 114 formed on the left and right sides of the inner surface of the upper wing plate 111, a pair of lower flanges 115 formed on the left and right sides of the inner surface of the lower wing plate 112, and a pull-tab mounting column 116 formed on the outer surface of the upper wing plate 111. The end of the first slider 110 opposite to the guide column 113 is formed as a first rear end portion 110a, and the first rear end portion 110a is open to the rear end. In this way, when the double open-tail slider set 100 is applied to Figure 7 In the case of the double open-end zipper 50 shown, the space between the upper wing plate 111 and the lower wing plate 112 of the first slider 110 can allow the chain teeth 52b provided on the zipper tape 52a of the zipper chain 52 to pass through, and the pair of upper flanges 114 and the pair of lower flanges 115 can limit the left and right positions of the chain teeth 52b. In addition, the gap between the pair of upper flanges 114 and the pair of lower flanges 115 can allow the outer end of the zipper tape 52a to pass through. Thus, the first slider 110 can slide on the zipper chain 52 and open or close the chain teeth 52b through the guidance of the guide column 113. However, the present invention does not limit the specific structure of the first slider 110, which can be adjusted according to needs.

[0062] Furthermore, in this embodiment, if Figures 1 to 3 and Figure 6 As shown, the second slider 120 has an upper wing plate 121 and a lower wing plate 122 arranged opposite to each other, a guide column 123 connected between the upper wing plate 121 and the lower wing plate 122, a pair of upper flanges 124 formed on the left and right sides of the inner surface of the upper wing plate 121, a pair of lower flanges 125 formed on the left and right sides of the inner surface of the lower wing plate 122, and a pull-tab mounting column 126 formed on the outer surface of the upper wing plate 121. The end of the second slider 120 opposite to the guide column 123 is formed as a second rear end 120a, and the second rear end 120a is open to the rear end. In this way, when the double open-tail slider set 100 is applied to Figure 7 In the case of the double open-end zipper 50 shown, the space between the upper wing plate 121 and the lower wing plate 122 of the second slider 120 can allow the chain element 52b to pass through, and the pair of upper flanges 124 and the pair of lower flanges 125 can limit the left and right positions of the chain element 52b. In addition, the gap between the pair of upper flanges 124 and the pair of lower flanges 125 can allow the outer end of the zipper tape 52a to pass through. Thus, the second slider 120 can slide on the zipper chain 52 and open or close the chain element 52b through the guidance of the guide column 123. However, the present invention does not limit the specific structure of the second slider 120, which can be adjusted according to needs.

[0063] Furthermore, in this embodiment, if Figures 1 to 3As shown, the first rear end portion 110a of the first slider 110 and the second rear end portion 120a of the second slider 120 are arranged opposite to each other, which means that the first rear end portion 110a of the first slider 110 and the second rear end portion 120a of the second slider 120 are opposite to each other, so that the front end portion of the first slider 110 (i.e., the end corresponding to the guide column 113) and the front end portion of the second slider 120 (i.e., the end corresponding to the guide column 123) are respectively facing opposite sides. In this way, when the double open-tail slider set 100 is applied to Figure 7 In the case of the double open-end zipper 50 shown in the figure, the first slider 110 is oriented in the direction corresponding to the guide column 113 (ie, Figure 7 The zipper chain 52 is closed when it moves toward the direction corresponding to the first rear end portion 110a (ie, Figure 7 Accordingly, the second slider 120 moves in a direction corresponding to the guide column 123 (ie, Figure 7 The zipper chain 52 is closed when it moves toward the direction corresponding to the second rear end portion 120a (ie, Figure 7 In other words, the first slider 110 and the second slider 120 in the double open-end slider set 100 can open or close the chain element 52b by sliding on the zipper chain 52, thereby opening or closing at least one of the opposite sides of the zipper chain 52. Furthermore, when the first slider 110 and the second slider 120 approach each other by moving on the zipper chain 52, the first rear end portion 110a of the first slider 110 and the second rear end portion 120a of the second slider 120 move toward each other, so that they can be further fixed.

[0064] Specifically, in this embodiment, Figures 1 to 5As shown, compared with the second slider 120, the first slider 110 is provided with a snap-fitting protrusion 117 protruding from one of its upper wing plate 111 and lower wing plate 112 (for example, the upper wing plate 111) at the first rear end 110a. The snap-fitting protrusion 117 extends toward the second rear end 120a of the second slider 120 facing the first slider 120. In addition, the first rear end 110a is formed with a recess 118 for inserting the second rear end 120a between the other of the upper wing plate 111 and lower wing plate 112 (for example, the lower wing plate 112) and the snap-fitting protrusion 117. Since the first slider 110 and the second slider 120 of the double open-tail slider set 100 are arranged in a manner that the first rear end 110a and the second rear end 120a face each other, the recess 118 formed by the first rear end 110a of the first slider 110 is open toward the second rear end 120a of the second slider 120. In this way, when the first slider 110 and the second slider 120 are close to each other and abut against each other, the recess 118 formed by the first rear end portion 110a of the first slider 110 can be inserted into the second rear end portion 120a of the second slider 120, thereby temporarily fixing the first slider 110 and the second slider 120 to each other.

[0065] Specifically, if the size of the recess 118 of the first rear end portion 110a is set to be larger than the size of the second rear end portion 120a, although the second rear end portion 120a can be inserted into the recess 118 of the first rear end portion 110a, it does not have a fixing effect. In order to solve the above problem, in this embodiment, the first rear end portion 110a is provided with a snap-fitting protrusion 117 protruding toward the second rear end portion 120a. In addition, the first dimension (for example, the thickness direction T or the width direction W) of the recess 118 of the first rear end portion 110a in the direction corresponding to the snap-fitting protrusion 117 is Figure 4 and Figure 5 The distance D1 or the distance D2 shown in FIG. 1 is smaller than the second dimension of the second rear end portion 120a in the direction (for example, Figure 6 The thickness T1 or the width W1 shown in the figure). In this way, the second rear end portion 120a can be inserted into the smaller recessed portion 118 of the first rear end portion 110a through the flexible deformation of the resin material to be fixed, and the recessed portion 118 tightly covers the second rear end portion 120a through the elastic force generated by the flexible deformation of the resin material. Furthermore, the double open-tail slider set 100 has a good fixing effect and is not easy to be loosened due to shaking. Accordingly, the double open-tail slider set 100 can improve the fixing effect by applying material characteristics.

[0066] As an example, in this embodiment, if Figures 1 to 5As shown, the engaging protrusion 117 is provided on the upper wing plate 111. Correspondingly, the lower wing plate 112 of the first slider 110 is provided with an extending protrusion 119 extending further rearward than the lower flange 115 of the first slider 110. The recess 118 is formed between the engaging protrusion 117 and the extending protrusion 119. When the second rear end portion 120a is inserted into the recess 118 of the first rear end portion 110a, the engaging protrusion 117 and the extending protrusion 119 are flexibly deformed outward to clamp the second rear end portion 120a. Preferably, as Figure 5 As shown, the thickness T2 of the extended protrusion 119 is less than the thickness T3 of the lower wing plate 112, so as to form a step portion 119S at the first rear end portion 110a to accommodate the second rear end portion 120a. That is, the second rear end portion 120a inserted into the recess 118 formed by the first rear end portion 110a can be supported on the inner surface of the extended protrusion 119, and inserted into the interior of the recess 118 until it abuts against the side surface of the step portion 119S without further contacting the lower wing plate 112 or the pair of lower flanges 115, thereby limiting the position of the second rear end portion 120a.

[0067] However, in other embodiments not shown, the step portion 119S may be omitted. In this case, the second rear end portion 120a inserted into the recess 118 formed by the first rear end portion 110a rests on the inner surface of the extended protrusion 119, and is clamped by the extended protrusion 119 via the engaging protrusion 117 that is flexibly deformed outward. Alternatively, the extending protrusion 119 may be omitted. In this case, a recess 118 for inserting the second rear end portion 120a is formed between the engaging protrusion 117 and the inner surface of the lower wing plate 112, and when the second rear end portion 120a is inserted into the recess 118 of the first rear end portion 110a, the second rear end portion 120a inserted into the recess 118 formed by the first rear end portion 110a rests on the inner surface of the lower wing plate 112, and the engaging protrusion 117 is flexibly deformed outward and rests on the outer surface of the second rear end portion 120a. Furthermore, the engaging protrusion 117 may be provided on the lower wing plate 112. In this case, a recess 118 is formed between the engaging protrusion 117 and the inner surface of the upper wing plate 111, and when the second rear end portion 120a is inserted into the recess 118 of the first rear end portion 110a, the engaging protrusion 117 is flexibly deformed outward and abuts against the outer surface of the second rear end portion 120a. It can be seen that as long as the first rear end portion 110a of the first slider 110 is formed with a recess 118 for the second rear end portion 120a of the second slider 120 to be inserted, and the second rear end portion 120a having a size larger than the recess 118 is tightly fixed by the flexible deformation of the resin material, the present invention does not limit the setting position of the engaging protrusion 117, and whether the extending protrusion 119 and the step portion 119S are set, which can be adjusted according to needs.

[0068] Furthermore, in this embodiment, if Figure 4 and Figure 5 As shown, the engaging protrusion 117 includes a pair of engaging protrusions 117A protruding from the thickness direction T of one of the upper wing plate 111 and the lower wing plate 112 (for example, the upper wing plate 111), and a pair of engaging protrusions 117B protruding from the width direction W of the upper wing plate 111 and the lower wing plate 112 (for example, the upper wing plate 111). Among them, the engaging protrusion 117A in the thickness direction T corresponds to the lower wing plate 112 or the extended protrusion 119 provided on the lower wing plate 112 in the thickness direction T, so that the engaging protrusion 117A in the thickness direction T can be only one, or can be provided with multiple (a pair in this example). Correspondingly, the engaging protrusions 117B in the width direction W are preferably provided in pairs in the width direction W (a pair in this example). In the case where the upper wing plate 111 of the first slider 110 is provided with both the engaging protrusion 117A in the thickness direction T and the engaging protrusion 117B in the width direction W, the engaging protrusion 117A and the engaging protrusion 117B located on the same side can be connected to each other to form an L-shape, that is, a pair of L-shaped engaging protrusions 117 are provided on opposite sides of the width direction W of the upper wing plate 111. However, in other embodiments not shown, the engaging protrusion 117A in the thickness direction T and the engaging protrusion 117B in the width direction W may not be connected to each other. Alternatively, the first slider 110 may also be provided with only the engaging protrusion 117A in the thickness direction T, or only the engaging protrusion 117B in the width direction W. The present invention does not limit the specific structure and setting position of the engaging protrusion 117.

[0069] Similarly, in this embodiment, if Figure 4 and Figure 5As shown, the extended protrusion 119 includes an extended protrusion 119A extending backward from the thickness direction T of the lower wing plate 112, and a pair of extended protrusions 119B protruding from the width direction W of the lower wing plate 112. Among them, since the extended protrusion 119A in the thickness direction T corresponds to the engaging protrusion 117 provided on the upper wing plate 111 or the lower wing plate 112 in the thickness direction T, there can be only one extended protrusion 119A in the thickness direction T, and it is preferably configured as a plate-like structure similar to the lower wing plate 112, so as to carry the second rear end 120a of the insertion recess 118. Correspondingly, the extended protrusion 119B in the width direction W is preferably arranged in pairs in the width direction W (a pair in this example), and is preferably configured as a strip-like structure similar to the pair of lower flanges 125, but it is not limited thereto. In the case where the lower wing plate 112 of the first slider 110 is provided with both the extended protrusion 119A in the thickness direction T and the extended protrusion 119B in the width direction W, the extended protrusion 119A and the extended protrusion 119B can be connected to each other to form a cover-like structure. However, in other embodiments not shown, the extended protrusion 119A in the thickness direction T and the extended protrusion 119B in the width direction W may not be connected to each other. Alternatively, the first slider 110 may also be provided with only the extended protrusion 119A in the thickness direction T, or only the extended protrusion 119B in the width direction W, or the extended protrusion 119 may not be provided. The present invention does not limit the specific structure, setting position, and whether the extended protrusion 119 is provided.

[0070] Specifically, in this embodiment, Figures 1 to 5 As shown, the engaging protrusion 117A is provided on the upper side of the upper wing plate 111 in the thickness direction T, and the extending protrusion 119A is provided on the lower side of the lower wing plate 112 in the thickness direction T, and extends further toward the second rear end portion 120a of the second slider 120 than the engaging protrusion 117A. In this case, the first dimension of the recess 118 of the first rear end portion 110a is the distance D1 between the inner side surface of the engaging protrusion 117A and the inner side surface of the extending protrusion 119A in the thickness direction T corresponding to the engaging protrusion 117A (as shown in FIG. Figure 4 and Figure 5 The second dimension of the second rear end portion 120a is the thickness T1 of the second rear end portion 120a in the thickness direction T (as shown in FIG. Figure 6 ), and the first dimension (distance D1) of the concave portion 118 of the first rear end portion 110a in the thickness direction T corresponding to the engaging convex portion 117 is smaller than the second dimension (thickness T1) of the second rear end portion 120a in the thickness direction T. Thus, when the second rear end portion 120a is inserted into the concave portion 118 of the first rear end portion 110a, the engaging convex portion 117A and the extending convex portion 119A are deformed outwardly in the thickness direction T (as shown in FIG. Figure 2The second rear end portion 120a is clamped by the second rear end portion 120a.

[0071] Correspondingly, in this embodiment, if Figures 1 to 5 As shown, the engaging protrusions 117B are further provided on the outer side of the upper wing plate 111 in the width direction W and are provided in pair, and the extending protrusions 119B are further provided on the outer side of the lower wing plate 112 in the width direction W and are provided in pair. In this case, the first dimension of the concave portion 118 of the first rear end portion 110a is the distance D2 (as shown in FIG. 1 ) between the inner side surfaces of the pair of engaging protrusions 117B in the width direction W corresponding to the engaging protrusions 117B. Figure 4 and Figure 5 The second dimension of the second rear end portion 120a is the width W1 of the second rear end portion 120a in the width direction W (as shown in FIG. Figure 6 ), and the first dimension (distance D2) of the concave portion 118 of the first rear end portion 110a in the width direction W corresponding to the engaging protrusion 117 is smaller than the second dimension (width W1) of the second rear end portion 120a in the width direction W. Thus, when the second rear end portion 120a is inserted into the concave portion 118 of the first rear end portion 110a, at least one pair of engaging protrusions 117B are deformed outward in the width direction W (as shown in FIG. Figure 3 Accordingly, the pair of extending protrusions 119B may also be sized to closely contact the second rear end portion 120a, but this is not limiting.

[0072] In addition, in this embodiment, Figure 5 As shown, the inner surface of the engaging protrusion 117 is provided with a fixing protrusion 117c protruding toward the recess 118. That is, the engaging protrusion 117A in the thickness direction T may be provided with a fixing protrusion 117c protruding downward, and the engaging protrusion 117B in the width direction W may be provided with a fixing protrusion 117c protruding inward. In this way, when the second rear end portion 120a is inserted into the recess 118 of the first rear end portion 110a, the fixing protrusion 117c protrudes toward the second rear end portion 120a and abuts against the outer side surface of the second rear end portion 120a, thereby improving the abutting effect of the engaging protrusion 117 against the outer side surface of the second rear end portion 120a. However, in other embodiments not shown, only part of the engaging protrusion 117A or the engaging protrusion 117B may be provided with the fixing protrusion 117c. Alternatively, a similar fixing protrusion may also be provided on the extension protrusion 119. The present invention does not limit the location of the fixing protrusion 117c or whether to install it, and it can be adjusted according to needs.

[0073] Furthermore, in this embodiment, if Figure 7As shown, the double open-end slider group 100 is suitable for being installed in groups on the zipper chain 52 to form the double open-end zipper 50. The double open-end zipper 50 includes the zipper chain 52 and the double open-end slider group 100 installed in groups on the zipper chain 52. As an example, the first slider 110 in the double open-end slider group 100 is a lower slider and the second slider 120 is an upper slider. That is to say, the first slider 110 provided with the aforementioned fixing structures such as the engaging protrusion 117 and the recess 118 is preferably located below the zipper chain 52 compared to the second slider 120 when forming the double open-end zipper 50. In this way, the first slider 110 provided with the fixing structures such as the engaging protrusion 117 and the recess 118 can support the second rear end portion 120a of the second slider 120 from the lower side. That is, the insertion direction of the second rear end portion 120a into the recess 118 formed by the first rear end portion 110a corresponds to the direction of gravity, which helps to more tightly insert the second rear end portion 120a into the recess 118 formed by the first rear end portion 110a. However, in other embodiments not shown, the first slider 110 can also be selected as the upper slider and the second slider 120 can be selected as the lower slider. Alternatively, the first slider 110 and the second slider 120 of the double open-tail slider set 100 can also be arranged opposite to each other in the left-right direction. The present invention does not limit the specific application of the double open-tail slider set 100, which can be adjusted according to needs.

[0074] Furthermore, in this embodiment, if Figure 7 As shown, the zipper chain 52 includes a zipper tape 52a extending along the length direction L and a plurality of fastener elements 52b arranged on the zipper tape 52a (in Figure 7 and Figure 8 The first slider 110 and the second slider 120 in the double open-end slider set 100 can slide on the zipper chain 52 to open or close the chain element 52b, thereby opening or closing at least one of the two opposite sides of the zipper chain 52. Figure 8As shown, the double open-end zipper 50 further includes an opening member 54. The opening member 54 is, for example, an insert rod 54a and a seat rod 54b disposed on the zipper tape 52a and located at the end of the arrangement position of the chain element 52b. The insert rod 54a and the seat rod 54b are respectively disposed at the ends of a pair of zipper tapes 52a, and when the double open-end slider group 100 is mounted on the zipper chain 52 to form the double open-end zipper 50, the insert rod 54a and the seat rod 54b as the opening member 54 pass through the inside of the first slider 110 and the second slider 120. In this way, the double open-end slider group 100, for example, when approaching the end of the zipper chain 52, is temporarily fixed to each other so that the opening member 54 disposed at the end of the zipper chain 52 passes. Furthermore, the first slider 110 and the second slider 120 in the double open-end slider set 100 can slide on the zipper chain 52 to a position above the opening member 54 , thereby opening or closing at least one of the two opposite sides of the zipper chain 52 .

[0075] Specifically, in this embodiment, Figure 8 As shown, the lower end side of the seat rod 54b provided at the end of the zipper tape 52a on one side is provided with a lower stopper 56a, and the upper end side of the seat rod 54b is provided with a stopper protrusion 56b protruding toward the insertion rod 54a. Correspondingly, the upper end side of the insertion rod 54a provided at the end of the zipper tape 52a on the other side is provided with a recessed stopper recess 56c. In the process of installing the first slider 110 and the second slider 120 on the zipper chain 52, the insertion rod 54a and the seat rod 54b can be inserted into the first slider 110 and the second slider 120. The seat bar 54b is inserted into the first slider 110 and the second slider 120, and the first slider 110, which is located at the bottom and serves as the lower slider, is locked by the lower locking portion 56a and cannot slide to a position lower than the seat bar 54b, while the second slider 120, which serves as the upper slider, is installed above the first slider 110 and cannot slide to a position lower than the first slider 110, so that the first slider 110 and the second slider 120 will not slide down from the bottom of the zipper chain 52. Subsequently, the insert rod 54a is inserted into the first slider 110 and the second slider 120, and the locking recess 56c of the insert rod 54a is locked by the locking protrusion 56b of the seat bar 54b and cannot move to a position lower than the seat bar 54b. When the opening member 54 passes through the first slider 110 and the second slider 120, the first slider 110 and the second slider 120 can slide upward relative to the zipper chain 52 to a position higher than the opening member 54, wherein the first slider 110 serving as a lower slider can slide upward to open the lower side of the zipper chain 52 and slide downward to close the lower side of the zipper chain 52, and the second slider 120 serving as an upper slider can slide upward to close the upper side of the zipper chain 52 and slide downward to open the upper side of the zipper chain 52.

[0076] Furthermore, in this embodiment, if Figure 8 As shown, when the first slider 110 and the second slider 120 both slide to the end of the zipper tape 52a and the insertion rod 54a is removed from the first slider 110 and the second slider 120 (for example, moved upward), the first slider 110 and the second slider 120 are preferably still installed on the zipper tape 52a provided with the seat rod 54b through the locking of the lower locking portion 56a of the seat rod 54b. Accordingly, during the process of inserting the insertion rod 54a into the first slider 110 and the second slider 120 (for example, moving downward), the first slider 110 and the second slider 120 are preferably temporarily fixed to facilitate the insertion of the insertion rod 54a. At this time, if the fixing effect of the double open-tail slider assembly 100 is not good (for example, there is an assembly tolerance in the width direction W), the locking recess 56c of the insert rod 54a is difficult to be locked by the locking protrusion 56b of the seat rod 54b, so that the insert rod 54a is easily moved to a position lower than the locking protrusion 56b and slides out of the first slider 110. In order to solve the above problem, the double open-tail slider assembly 100 used in the double open-tail zipper 50 of this embodiment is provided with a locking protrusion 117 at the first rear end portion 110a of the first slider 110 and a recess 118 for the second rear end portion 120a of the second slider 120 is formed.

[0077] It can be seen from this that in the double open-tail zipper 50 using the double open-tail slider group 100 of this embodiment, the second rear end portion 120a can be inserted into the smaller recessed portion 118 of the first rear end portion 110a for fixation through the flexible deformation of the resin material, and the recessed portion 118 tightly covers the second rear end portion 120a through the elastic force generated by the flexible deformation of the resin material. Furthermore, the double open-tail slider group 100 has a good fixing effect and is not easy to loosen due to shaking. Therefore, even if the first slider 110 and / or the second slider 120 are shaken during the insertion of the opening member 54 (especially the insertion rod 54a), the opening member 54 (especially the insertion rod 54a) will not slip out of the double open-tail slider group 100. Accordingly, the double open-tail zipper 50 can improve the fixing effect by applying material properties. However, the present invention is not limited to fixing the first slider 110 and the second slider 120 in the double open-end slider set 100 only when the double open-end zipper 50 is provided with an opening member 54 in order to prevent the opening member 54 from sliding out. The fixing structure can be used at any desired time point of the double open-end slider set 100 and the double open-end zipper 50.

[0078] In summary, in the double open-tail slider group and the double open-tail zipper of the present invention, the first slider formed by the resin material and the second slider formed by the resin material are arranged opposite to each other at the rear end, and the first rear end is provided with a clamping convex portion extending toward the opposite second rear end, and a recess is formed for the second rear end to be inserted. In addition, the first dimension of the recess of the first rear end in the direction corresponding to the clamping convex portion (for example, the rear direction or the width direction) is smaller than the second dimension of the second rear end in the direction. Preferably, when the second rear end is inserted into the recess of the first rear end, the clamping convex portion is flexibly deformed outward and abuts against the outer side of the second rear end. In this way, the second rear end can be inserted into the smaller recess of the first rear end through the flexible deformation of the resin material for fixing, and the recess is tightly covered by the elastic force generated by the flexible deformation of the resin material. Furthermore, the double open-tail slider group has a good fixing effect and is not easy to loosen due to shaking. Accordingly, the double open-tail slider group and the double open-tail zipper of the present invention can apply material properties to improve the fixing effect.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A double open-end slider set (100), which is suitable for being installed in groups on a zipper chain (52) to form a double open-end zipper (50), and is characterized in that include: A first slider (110) is made of a resin material and has a first rear end portion (110a); as well as The second slider (120) is made of resin material and has a second rear end portion (120a), wherein The first rear end portion (110a) of the first slider (110) and the second rear end portion (120a) of the second slider (120) are arranged opposite to each other. The first slider (110) is provided with a locking protrusion (117, 117A, 117B) protruding from one of the upper wing plate (111) and the lower wing plate (112) at the first rear end portion (110a), and the locking protrusion (117, 117A, 117B) extends toward the second rear end portion (120a) of the second slider (120) opposite thereto. The first rear end portion (110a) is formed with a recess (118) for inserting the second rear end portion (120a) between the other of the upper wing plate (111) and the lower wing plate (112) and the engaging protrusion (117, 117A, 117B), and A first dimension (D1, D2) of the recess (118) of the first rear end portion (110a) in a direction corresponding to the engaging protrusion (117, 117A, 117B) is smaller than a second dimension (T1, W1) of the second rear end portion (120a) in the direction.

2. The double open-tail slider assembly (100) according to claim 1, characterized in that: When the second rear end portion (120a) is inserted into the recess (118) of the first rear end portion (110a), the engaging protrusions (117, 117A, 117B) are flexibly deformed outward and abut against the outer surface of the second rear end portion (120a).

3. The double open-tail slider assembly (100) according to claim 1, characterized in that: The engaging protrusions (117, 117A, 117B) are provided on the upper wing plate (111), and The recess (118) is formed between the engaging protrusions (117, 117A, 117B) and the inner surface of the lower wing plate (112).

4. The double open-tail slider assembly (100) according to claim 3, characterized in that: The lower wing plate (112) of the first slider (110) is provided with an extended protrusion (119, 119A, 119B) extending further rearward than the lower flange (115) of the first slider (110). The recess (118) is formed between the engaging protrusion (117, 117A, 117B) and the extending protrusion (119, 119A, 119B), and When the second rear end portion (120a) is inserted into the recess (118) of the first rear end portion (110a), the engaging protrusions (117, 117A, 117B) and the extending protrusions (119, 119A, 119B) are flexibly deformed outward to clamp the second rear end portion (120a).

5. The double open-tail slider assembly (100) according to claim 4, characterized in that: The engaging protrusion (117A) is provided on the upper side of the upper wing plate (111) in the thickness direction (T). The extending protrusion (119A) is provided on the lower side of the lower wing plate (112) in the thickness direction (T), and extends further toward the second rear end portion (120a) of the second slider (120) than the engaging protrusion (117A). The first dimension of the recess (118) is a distance (D1) between the inner surface of the engaging protrusion (117A) and the inner surface of the extending protrusion (119A) in the thickness direction (T) corresponding to the engaging protrusion (117A), The second dimension is the thickness (T1) of the second rear end portion (120a) in the thickness direction (T), and When the second rear end portion (120a) is inserted into the recess (118) of the first rear end portion (110a), the engaging protrusion (117A) and the extending protrusion (119A) clamp the second rear end portion (120a) in the thickness direction (T).

6. The double open-tail slider assembly (100) according to claim 5, characterized in that: The engaging protrusion (117B) is further provided on the outer side of the upper wing plate (111) in the width direction (W) and is provided with a pair of The extending protrusion (119B) is further provided on the outer side of the lower wing plate (112) in the width direction (W) and is provided with a pair of The first dimension of the recess (118) is a distance (D2) between the inner surfaces of a pair of the engaging protrusions (117B) in the width direction (W) corresponding to the engaging protrusions (117B), The second dimension is the width (W1) of the second rear end portion (120a) in the width direction (W), and When the second rear end portion (120a) is inserted into the recess (118) of the first rear end portion (110a), at least one pair of the engaging protrusions (117B) clamps the second rear end portion (120a) in the width direction (W).

7. The double open-tail slider assembly (100) according to claim 5, characterized in that: The thickness (T2) of the extended protrusion (119A) is smaller than the thickness (T3) of the lower wing plate (112), so as to form a step portion (119S) at the first rear end portion (110a) to accommodate the second rear end portion (120a).

8. The double open-tail slider assembly (100) according to any one of claims 1 to 7, characterized in that: The inner surface of the engaging protrusion (117, 117A, 117B) is provided with a fixing protrusion (117c) protruding toward the concave portion (118), and When the second rear end portion (120a) is inserted into the recess (118) of the first rear end portion (110a), the fixing protrusion (117c) protrudes toward the second rear end portion (120a) and abuts against the outer surface of the second rear end portion (120a).

9. The double open-tail slider assembly (100) according to any one of claims 1 to 7, characterized in that: The first slider (110) is a lower slider and the second slider (120) is an upper slider.

10. A double-open-end zipper (50), characterized in that: include: Zipper chain (52); and The double open-tail slider set (100) according to any one of claims 1 to 9 is installed in groups on the zipper chain (52).

11. The double-open-tail zipper (50) according to claim 10, characterized in that: Also includes: The opening member (54) passes through the interior of the first slider (110) and the second slider (120).

Images