Zipper chain

Abstract

The utility model provides a zipper chain which has the decorative effect of the surface side and the embedding effect of the inner side and improves the transverse tensile strength near an insertion rod and a seat rod. The zipper chain comprises an insertion rod side tooth chain belt and a seat rod side tooth chain belt. The plunger side tooth chain belt comprises a plurality of plunger side chain teeth and a plunger. The seat bar side tooth chain belt comprises a plurality of seat bar side chain teeth and a seat bar. The seat bar side zipper teeth comprise first seat bar side zipper teeth adjacent to the seat bar and at least one second seat bar side zipper tooth. The plunger is provided with a plunger element part which is embedded with the opposite first seat rod side element. And the front end parts, at least close to the plunger side zipper teeth, of the surface side and the inner side of the plunger zipper tooth part are respectively provided with a semicircular head part which protrudes towards the seat plunger side tooth zipper belt. The rear end portions, close to the base rod, of the surface side and the inner side of the first base rod side zipper teeth are each provided with a semicircular head protruding towards the insertion rod side tooth zipper belt, and the front end portion, opposite to the base rod, of the surface side of the first base rod side zipper teeth is provided with a decoration portion different from the semicircular heads in shape.

Description

Technical Field

[0001] The utility model relates to the technology in the field of zippers, and in particular to a zipper chain. Background Art

[0002] A common fastener generally includes a fastener chain composed of a pair of left and right fastener stringers each having a plurality of chain elements, and a slider installed on the zipper chain and opening or closing the chain elements by sliding. A pull tab or the like may also be installed on the zipper slider to drive the sliding of the slider. Among them, the ends of the chain element arrays provided on the zipper stringer may be provided with opening parts such as a separable pin, a retainer pin, and a retainer box for accommodating the separable pins and retainer boxes that are connected to each other. The retainer box and the retainer box may be provided in an integral shape, and the separable pin is inserted into the socket to connect with the retainer box, but is not limited thereto. After the separated separable pins and retainer boxes are connected to each other and accommodated in the socket, the zipper chain can be closed by sliding the slider to engage the plurality of chain elements on the front end sides of the separable pins and retainer boxes. Furthermore, the plurality of fastener elements can be separated from each other by the reverse sliding of the slider to open the fastener chain, and the insert rod and the seat rod can be further separated to separate a pair of left and right fastener stringers of the fastener chain.

[0003] Furthermore, in the prior art, in order to improve the appearance of the zipper chain, the chain teeth provided in the zipper chain belt can be set to special-shaped chain teeth with different shapes on the front side and the back side. This can make the front side of the chain teeth have a decorative effect to improve the appearance of the zipper chain, and at the same time make the back side of the chain teeth have a fitting effect to maintain the usability of the zipper chain. However, if the front sides of all the chain teeth are set to a shape with a decorative effect in order to improve the appearance of the zipper chain, the fitting effect of the chain teeth will be greatly reduced. In particular, in the area close to the insert rod and the seat rod, the reduced fitting effect will lead to a reduction in the horizontal pulling strength near the opening member, which is easy to cause damage to the zipper chain when operating the opening member (for example, inserting the insert rod and / or the seat rod into the socket). Utility Model Content

[0004] The utility model provides a zipper chain which can have both the decorative effect on the surface side and the fitting effect on the inner side, and improves the horizontal pulling strength near the insertion rod and the seat rod.

[0005] The utility model provides a zipper chain, comprising: an insert-rod side tooth chain belt, comprising a plurality of insert-rod side chain teeth having different shapes on the front side and the back side and arranged along the front-to-back direction, and an insert rod arranged at the rear end of the insert-rod side chain teeth; and a seat rod side tooth chain belt, comprising a plurality of seat rod side chain teeth having different shapes on the front side and the back side and arranged along the front-to-back direction, and a seat rod arranged at the rear end of the seat rod side chain teeth, wherein the plurality of insert-rod side chain teeth of the insert-rod side tooth chain belt and the plurality of seat rod side chain teeth of the seat rod side tooth chain belt are meshed with each other, and the seat rod side chain teeth include a first seat rod side chain tooth adjacent to the seat rod, And at least one second seat rod side chain tooth arranged in a direction opposite to the seat rod, the insert rod having an insert rod chain tooth portion engaged with the opposite first seat rod side chain tooth, the front side and the back side of the insert rod chain tooth portion at least close to the front end of the insert rod side chain tooth each have a semicircular head protruding toward the seat rod side chain belt, the front side and the back side of the first seat rod side chain tooth close to the seat rod each have a semicircular head protruding toward the insert rod side chain belt, and the front side of the first seat rod side chain tooth opposite to the front end of the seat rod has a decorative portion, and the decorative portion has a shape different from the semicircular head.

[0006] In an embodiment of the utility model, in the insert chain element portion, the semicircular head portion formed at the front end portion on the front side and the semicircular head portion formed at the front end portion on the back side are staggered in the front-to-back direction.

[0007] In an embodiment of the present invention, in the first seat bar side chain element, the semicircular head formed at the rear end portion of the front side and the semicircular head formed at the rear end portion of the back side are staggered in the front-to-back direction.

[0008] In an embodiment of the present invention, the front side and the back side of the inserter element portion, opposite to the rear end of the inserter-side element, each have a semicircular head protruding toward the seat-side toothed chain belt.

[0009] In an embodiment of the present invention, in the first seat-bar side fastener element, the decorative portion formed at the front end portion of the front side extends obliquely toward the insert-bar side fastener tape.

[0010] In an embodiment of the present invention, the front end portion of the inner side of the first seat rod side chain tooth opposite to the seat rod has a semicircular head portion protruding toward the insert rod side chain belt, and in the first seat rod side chain tooth, the inner edge of the semicircular head portion formed by the front end portion of the inner side extends further inward in the left-right direction than the inner edge of the decorative portion formed by the front end portion of the surface side.

[0011] In an embodiment of the utility model, the front side of the insert rod side chain tooth has a decorative portion extending obliquely from the front end and the rear end toward the seat rod side chain belt, and the inner side of the insert rod side chain tooth has a round head portion protruding from the front end and the rear end toward the seat rod side chain belt, and in the insert rod side chain tooth, the inner edge of the round head portion formed on the inner side extends further inward in the left-right direction than the inner edge of the decorative portion formed on the front side.

[0012] In an embodiment of the present invention, the front side of the second seat rod side chain tooth has a decorative portion extending obliquely from the front end and the rear end toward the insert rod side chain belt, and the inner side of the second seat rod side chain tooth has a round head portion protruding from the front end and the rear end toward the insert rod side chain belt, and in the second seat rod side chain tooth, the inner edge of the round head portion formed on the inner side extends further inward in the left-right direction than the inner edge of the decorative portion formed on the front side.

[0013] In an embodiment of the utility model, the insert rod side tooth chain belt also includes an insert rod side core wire, and a plurality of the insert rod side chain teeth and the insert rod are arranged on the insert rod side core wire; the seat rod side tooth chain belt also includes a seat rod side core wire, and a plurality of the seat rod side chain teeth and the seat rod are arranged on the seat rod side core wire.

[0014] Based on the above, in the zipper chain of the present invention, the insert rod has an insert rod chain tooth portion that is engaged with the opposite first seat rod side chain tooth (adjacent chain tooth), at least the front end portions of the front side and the back side of the insert rod chain tooth portion each have a protruding semicircular head portion, the rear end portions of the front side and the back side of the first seat rod side chain tooth each have a protruding semicircular head portion, and the front end portion of the front side of the first seat rod side chain tooth has a decorative portion that is different in shape from the semicircular head portion (that is, the front and rear ends of the front side of the first seat rod side chain tooth have different shapes). In this way, not only can the front end portion of the back side of the insert rod chain tooth portion and the rear end portion of the back side of the first seat rod side chain tooth be engaged with each other through the semicircular head portion to obtain an engaging effect, but the front end portion of the front side of the insert rod chain tooth portion and the rear end portion of the front side of the first seat rod side chain tooth can also be engaged with each other through the semicircular head portion to further enhance the engaging effect, thereby enhancing the transverse tensile strength near the insert rod and the seat rod. In addition, the front end portion of the front side of the first seat rod side chain tooth can provide a decorative effect. Accordingly, the zipper chain of the utility model can have both the decorative effect on the front side and the fitting effect on the back side, and improve the horizontal pulling strength near the insertion rod and the seat rod.

[0015] In order to make the above features and advantages of the present invention more obvious and easy to understand, embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a plan view of the front side of the zipper chain of the embodiment of the utility model when it is closed;

[0017] Figure 2 yes Figure 1 A schematic plan view of the inner side of the zipper chain when it is closed;

[0018] Figure 3 yes Figure 1 The illustrated partial enlarged schematic diagram of the front side of the zipper chain when it is opened;

[0019] Figure 4 yes Figure 3 The inside of the zipper chain shown is a partially enlarged schematic diagram when it is opened.

[0020] Description of reference numerals:

[0021] 100: zipper chain;

[0022] 102: socket;

[0023] 104: Wings;

[0024] 110: Insertion rod side tooth chain belt;

[0025] 112: Insertion rod side chain teeth;

[0026] 114: Insert the rod;

[0027] 114a: Insertion rod chain tooth part;

[0028] 116: core wire on the plug side;

[0029] 120: seat bar side toothed chain belt;

[0030] 122: seat bar side chain teeth;

[0031] 122A: first rod side chain teeth;

[0032] 122B: chain teeth on the second rod side;

[0033] 124: seat bar;

[0034] 126: seat rod side core wire;

[0035] S11, S12, S21, S22, S31, S32: medial edge;

[0036] E11, E12, E31, E32, E51, E52, E61, E62, E81, E82: front end;

[0037] E21, E22, E41, E42, E71, E72, E91, E92: rear end;

[0038] X: front-to-back direction;

[0039] Y: left and right direction. DETAILED DESCRIPTION

[0040] Figure 1 1 is a plan view of the front side of the zipper chain of the embodiment of the utility model when it is closed. Figure 2 yes Figure 1 The schematic plan view of the inner side of the zipper chain when it is closed. Figure 3 yes Figure 1 The enlarged partial view of the front side of the zipper chain when it is opened is shown in FIG. Figure 4 yes Figure 3 The following is a partial enlarged schematic diagram of the inner side of the zipper chain when it is opened. Figures 1 to 4 The specific structure of the zipper chain 100 of the present embodiment is described, wherein the front side refers to the side that serves as the appearance surface after the zipper chain 100 is applied to a product (for example, sewn on the fabric of clothing, bags, shoes, etc.), and the back side refers to the side that is hidden inside the product after the zipper chain 100 is applied to the product (that is, the side that is not the appearance surface), but the present invention is not limited to this and can be adjusted according to needs.

[0041] Please refer to Figure 1 and Figure 2 In the present embodiment, the zipper chain 100 includes an insert-pin side tooth chain tape 110 and a seat-pin side tooth chain tape 120. The insert-pin side tooth chain tape 110 includes a plurality of insert-pin side chain elements 112 having different shapes on the front side and the back side and arranged along the front-to-back direction X, and an insert-pin 114 arranged at the rear end of the insert-pin side chain elements 112. The seat-pin side tooth chain tape 120 includes a plurality of seat-pin side chain elements 122 having different shapes on the front side and the back side and arranged along the front-to-back direction X, and a seat-pin 124 arranged at the rear end of the seat-pin side chain elements 122. The plurality of insert-pin side chain elements 112 of the insert-pin side tooth chain tape 110 and the plurality of seat-pin side chain elements 122 of the seat-pin side tooth chain tape 120 are meshed with each other. The seat rod side chain element 122 includes a first seat rod side chain element 122A adjacent to the seat rod 124 and at least one second seat rod side chain element 122B arranged in a direction opposite to the seat rod 124 (i.e., the front side). The insert rod 114 has an insert rod chain element portion 114a engaged with the first seat rod side chain element 122A.

[0042] Specifically, in this embodiment, if Figure 1 and Figure 2As shown, the insert-side chain tape 110 and the seat-side chain tape 120 are long strip-shaped zipper chain tapes each extending along the front-to-back direction X, and are arranged in pairs in the left-right direction Y. Although the zipper chain tape on the left side is provided with an insert-pin 114 as the insert-side chain tape 110 and the zipper chain tape on the right side is provided with a seat-bar 124 as the seat-bar side chain tape 120, and the insert-pin 114 and the seat-bar 124 are arranged at the rear end of each zipper chain tape (i.e., the lower side of the drawing), the front-to-back direction X (i.e., the up-down direction in the drawing, which is equivalent to the length direction) and the left-to-right direction Y (i.e., the left-to-right direction in the drawing, which is equivalent to the width direction) are adjusted according to the actual application of the zipper chain 100, and the present invention is not limited thereto. In addition, the zipper chain 100 further includes a socket 102 for accommodating the plug rod 114 and the seat rod 124 that are connected to each other, and a pair of wings 104 disposed on the left and right outer sides of the plug rod 114 and the seat rod 124, so that the plug rod 114 and the seat rod 124 of the zipper chain 100 and other opening parts can be sewn on the product through the wings 104. However, the present invention does not limit the application of other parts of the zipper chain 100, the means of installation on the product, and the types of applicable products, which can be adjusted according to needs.

[0043] Furthermore, in this embodiment, if Figure 1 and Figure 2 As shown, in the closed state of the zipper chain 100, the insert rod 114 and the seat rod 124 are, for example, inserted into the socket 102 at the end of the zipper chain 100. In addition, the rear end of the insert rod chain tooth portion 114a of the insert rod 114 of the insert rod side chain belt 110 corresponds to the front end of the seat rod 124 of the seat rod side chain belt 120, and the front end of the insert rod chain tooth portion 114a of the insert rod 114 of the insert rod side chain belt 110 corresponds to the rear end of the first seat rod side chain tooth 122A of the seat rod side chain belt 120, so that the insert rod chain tooth portion 114a of the insert rod 114 is located between the seat rod 124 and the first seat rod side chain tooth 122A of the seat rod side chain belt 120. Furthermore, the rear end portion of the first seat rod side chain tooth 122A of the seat rod side chain belt 120 corresponds to the front end portion of the insert rod chain tooth portion 114a of the insert rod 114 of the insert rod side chain belt 110, and the front end portion of the first seat rod side chain tooth 122A of the seat rod side chain belt 120 corresponds to the rear end portion of the insert rod side chain tooth 112 of the insert rod side chain belt 110 closest to the insert rod 114, so that the first seat rod side chain tooth 122A is located between the insert rod chain tooth portion 114a of the insert rod 114 of the insert rod side chain belt 110 and the insert rod side chain tooth 112 closest to the insert rod 114. Similarly, the other insert-pin side chain teeth 112 of the insert-pin side chain belt 110 and the second seat-pin side chain teeth 122 of the seat-pin side chain belt 120 are arranged in a staggered manner with the front end and the rear end connected alternately, so that the multiple insert-pin side chain teeth 112 of the insert-pin side chain belt 110 and the multiple seat-pin side chain teeth 122 of the seat-pin side chain belt 120 are engaged with each other.

[0044] Furthermore, in this embodiment, if Figure 3 and Figure 4 As shown, in the inserter element portion 114a of the inserter 114 of the inserter side fastener belt 110, the surface side ( Figure 3 ) of the front end portion E11 close to the insert side element 112, and the inner side of the insert element portion 114a ( Figure 4 ) of the front end portion E12 close to the insert side element 112 each has a semicircular head protruding toward the seat bar side fastener tape 120. Accordingly, in the first seat bar side element 122A of the seat bar side fastener tape 120, the front side ( Figure 3 ) of the rear end portion E21 close to the seat bar 124, and the inner side of the first seat bar side coupling element 122A ( Figure 4 )'s rear end portion E22 near the seat rod 124 each has a semicircular head portion protruding toward the insert-side tooth chain belt 110. Here, the round head portion refers to a head portion that extends inward from the main body of the chain tooth and first shrinks inward to form a neck portion and then expands to a head portion that is larger than the neck portion and has an arc surface, so that the overall shape of the chain tooth is similar to a tumbler, making it easy for the chain tooth to engage with the opposite chain tooth (that is, the round head portion of the chain tooth is between the necks of the two opposite chain teeth). The semicircular head portion means that after the chain tooth is divided into a front end portion and a rear end portion by a center line, the end portion is formed into a shape having half of a round head portion, and has a neck portion and half of a head portion. Therefore, the surface side ( Figure 3 )'s front end E11 and the inner side ( Figure 4 ) is formed as a semicircular head protruding toward the front side (the upper side of the drawing), and the front side ( Figure 3 ) of the rear end E21 and the inner side ( Figure 4 )'s rear end portion E22 is formed as a semicircular head protruding toward the rear side (the upper side in the drawing).

[0045] In addition, in this embodiment, Figure 3 and Figure 4 As shown, in the first seat-bar side element 122A of the seat-bar side fastener tape 120, the front side ( Figure 3 ) has a decorative portion at the front end portion E31 opposite to the seat rod 124, and the decorative portion has a shape different from the semicircular head. Here, the decorative portion means that the shape is different from the round head or the semicircular head, and is more inclined to provide a decorative effect than to provide an effect of interlocking with the opposite chain elements (as described later). It can be seen that in the zipper chain 100, not only the insert-side chain elements 112 and the seat-side chain elements 122 are configured as special-shaped chain elements with different shapes on the front and back sides, such as Figure 3As shown, the front end E31 and the rear end E21 of the first rod side chain element 122A also have different shapes. In this way, the first rod side chain element 122A itself has both decorative effects and fitting effects. Figure 3 ) of the rear end E21 and the inner side ( Figure 4 ) formed by the rear end portion E22 can be aligned with the surface side ( Figure 3 )'s front end E11 and the inner side ( Figure 4 ) are fitted together at the front end E12, thereby improving the fitting effect on both the front and back sides, and the decorative portion formed by the front end E31 on the front side of the first seat rod side chain tooth 122A can provide a decorative effect.

[0046] Through the above arrangement, in the zipper chain 100 of the present embodiment, the insert rod 114 has an insert rod chain tooth portion 114a that is engaged with the opposite first-seat-rod-side chain tooth 122A (adjacent chain tooth), at least the front end portions E11 and E12 on the front and back sides of the insert rod chain tooth portion 114a each have a protruding semicircular head portion, the rear end portions E21 and E22 on the front and back sides of the first-seat-rod-side chain tooth 122A each have a protruding semicircular head portion, and the front end portion E31 on the front side of the first-seat-rod-side chain tooth 122A has a decorative portion that is different in shape from the semicircular head portion (that is, the front and rear ends on the front side of the first-seat-rod-side chain tooth 122A have different shapes). In this way, not only can the front end portion E12 on the back side of the insert rod chain tooth portion 114a and the rear end portion E22 on the back side of the first-seat-rod-side chain tooth 122A be engaged with each other through the semicircular head portion (such as Figure 2 As shown) to obtain the interlocking effect, the front end E11 of the insert rod chain tooth portion 114a and the rear end E21 of the first seat rod side chain tooth 122A can also be interlocked with each other through the semicircular head (as shown Figure 1 As shown) the interlocking effect is further improved, thereby increasing the horizontal tensile strength near the insert rod 114 and the seat rod 124. In addition, the decorative portion formed by the front end portion E31 of the first seat rod side chain element 122A can provide a decorative effect (such as Figure 1 As shown in FIG. 1 ). Accordingly, the zipper chain 100 can have both the decorative effect on the front side and the fitting effect on the back side, and improve the horizontal pulling strength near the insert rod 114 and the seat rod 124.

[0047] Furthermore, in this embodiment, if Figure 3 and Figure 4 As shown, in the insert chain element portion 114a, the surface side ( Figure 3 ) formed by the semicircular head portion E11 and the inner side ( Figure 4) are staggered in the front-to-back direction X. For example, the semicircular head formed by the front end E11 of the insert chain tooth portion 114a is staggered toward the rear end (i.e., the lower side of the drawing) in the front-to-back direction X compared to the semicircular head formed by the front end E12 of the inner side, so that Figure 3 As can be seen from the front side, the semicircular head formed by the front end E12 of the inner side of the inserting rod chain element portion 114a extends further to the front end (i.e., the upper side of the figure) than the semicircular head formed by the front end E11 of the front side. Figure 3 ) formed by the semicircular head portion E21 of the rear end portion and the inner side ( Figure 4 ) are staggered in the front-to-back direction X. For example, the semicircular head formed by the rear end E21 of the front side of the first seat rod side element 122A is staggered toward the rear end (i.e., the lower side in the drawing) in the front-to-back direction X compared to the semicircular head formed by the rear end E22 of the inner side, so that Figure 4 As shown in the figure, the semicircular head formed by the rear end E21 of the front side of the first rod side chain element 122A extends further to the rear end (i.e., the lower side of the figure) than the semicircular head formed by the rear end E22 of the inner side. Through the above arrangement, the front end E11 and E12 of the front side and inner side of the inserting rod chain element portion 114a and the rear end E21 and E22 of the front side and inner side of the first rod side chain element 122A can not only be engaged with each other through the semicircular head (such as Figure 1 and Figure 2 As shown) to obtain a chimeric effect, and also staggered in the front and rear direction X (as shown Figure 3 and Figure 4 As shown in the figure, the contact area during the engagement is increased, thereby increasing the lateral tensile strength near the insert rod 114 and the seat rod 124.

[0048] Similarly, in this embodiment, if Figure 3 and Figure 4 As shown, in the insert pin 114 of the insert pin side fastener belt 110, the surface side ( Figure 3 ) opposite to the rear end E41 of the insert side chain tooth 112 and the inner side ( Figure 4 ) opposite to the rear end portion E42 of the insert side chain element 112 each has a semicircular head protruding toward the seat rod side chain belt 120. Thus, the surface side ( Figure 3 ) formed by the semicircular head portion formed by the front end portion E11 and the rear end portion E41 constitute a round head portion protruding toward the seat bar side fastener belt 120, and is located between the front end portion E51 on the front side of the seat bar 124 and the rear end portion E21 on the front side of the first seat bar side fastener element 122A. Figure 4) formed by the front end E12 and the rear end E42 constitute a round head protruding toward the seat bar side fastener tape 120, and is located between the front end E52 of the seat bar 124 and the rear end E22 of the first seat bar side fastener element 122A. Figure 3 ) is set as a concave portion corresponding to the semicircular head formed by the rear end E41 of the front side of the insert chain tooth portion 114a, and the inner side ( Figure 4 ) is set to a semicircular head corresponding to the semicircular head formed by the rear end E42 of the inner side of the inserting rod chain tooth part 114a. In this way, the rear end E41 of the front side of the inserting rod chain tooth part 114a and the front end E51 of the front side of the seat rod 124 can be connected to each other through the corresponding semicircular head and the recessed part (such as Figure 1 As shown) to enhance the decorative effect, and the rear end E42 of the inner side of the insert chain tooth portion 114a and the front end E52 of the inner side of the seat rod 124 can be embedded with each other through the corresponding semicircular head (as shown Figure 2 However, the present invention is not limited thereto and can be adjusted according to the needs.

[0049] Furthermore, in this embodiment, if Figure 3 and Figure 4 As shown, the inner side of the first rod side chain element 122A ( Figure 4 ) has a front end portion E32 opposite to the seat bar 124 and has a semicircular head protruding toward the insert side fastener belt 110. That is, the front side ( Figure 3 )'s front end E31 and the inner side ( Figure 4 ) has a different shape at the front end E32. Among them, in the first rod side chain element 122A, the front side ( Figure 3 ) formed by the front end E31 extending obliquely toward the insert side chain belt 110, for example, forming an inclined portion that inclines from the outside to the inside (i.e., between a pair of chain belts) and from the front end to the rear end. Similarly, the front side ( Figure 3 ) has a decorative portion (a sharp corner formed by a pair of front and rear inclined portions) extending obliquely from the front end portion E61 and the rear end portion E71 toward the seat rod side tooth chain belt 120, and the inner side of the insert rod side chain element 112 ( Figure 4 ) has a round head (a round head composed of a pair of front and rear semi-round heads) protruding from the front end E62 and the rear end E72 toward the seat bar side tooth chain belt 120. In addition, the front side ( Figure 3 ) has a decorative portion extending obliquely from the front end portion E81 and the rear end portion E91 toward the insert side tooth chain belt 110, and the inner side of the second seat rod side chain element 122B ( Figure 4) has a round head portion protruding from the front end portion E82 and the rear end portion E92 toward the insert side fastener belt 110.

[0050] Through the above settings, in this embodiment, if Figure 1 and Figure 3 As shown, the decorative portion (inclined portion or pointed portion) formed by the front end portion E31 of the first rod side chain element 122A, the front end portion E61 and the rear end portion E71 of the insert rod side chain element 112, and the front end portion E81 and the rear end portion E91 of the second rod side chain element 122B are butted against each other and form a continuous sawtooth shape along the front-to-back direction X, thereby providing a decorative effect. Correspondingly, as Figure 2 and Figure 4 As shown, the semicircular head or round head formed by the front end E32 on the inner side of the first rod side chain tooth 122A, the front end E62 and the rear end E72 on the inner side of the insert rod side chain tooth 112, and the front end E82 and the rear end E92 on the inner side of the second rod side chain tooth 122B are butted against each other and form a continuous wave shape along the front-to-back direction X to provide a fitting effect. Comparing the decorative portion with the round head, since the round head protrudes toward the opposite tooth chain belt and expands in the front-to-back direction X, the contact area of ​​the round head engaging with the opposite chain tooth increases, thereby having a better fitting effect. Correspondingly, the decorative portion is configured as an inclined portion or a sharp angle portion formed by a pair of front and rear inclined portions, which can reduce the gap between the chain teeth and visually improve the aesthetics, that is, it has a good decorative effect. However, the utility model is not limited to this, and it can be adjusted according to needs.

[0051] In addition, in this embodiment, Figure 3 and Figure 4 As shown, in the insert side chain element 112, the inner side ( Figure 4 The inner side edge S11 of the round head formed by the front end E62 and the rear end E72 of the front side is larger than the inner side edge S11 of the round head formed by the front end E62 and the rear end E72 of the front side in the left-right direction Y. Figure 3 ) formed by the front end E61 and the rear end E71, the inner side edge S12 of the decorative portion (pointed corner portion) extends further inward (i.e., between the insert side fastener tape 110 and the seat side fastener tape 120). Accordingly, in the second seat side fastener element 122B, the inner side ( Figure 4 The inner side edge S21 of the round head formed by the front end E82 and the rear end E92 of the front side ( Figure 3 ) The inner side edge S22 of the decorative portion (pointed corner portion) formed by the front end portion E81 and the rear end portion E91 extends further inward. Similarly, in the first rod side chain element 122A, the inner side ( Figure 4 ) formed by the front end E32 of the semicircular head portion of the inner side edge S31 in the left-right direction Y compared to the front side ( Figure 3) extends further inwardly. That is, in the case where the decorative portion is formed on the front side and the semicircular head / round head is formed on the back side of the front and rear ends of these chain elements, it is preferred that the inner edge of the back side where the semicircular head / round head is formed extends further inwardly (i.e., the opposite chain tape) than the inner edge of the front side where the decorative portion is formed.

[0052] From this we can see that Figure 3 It can be seen from the front side that in the insert-side chain element 112, the inner edge S11 of the front end E62 and the rear end E72 on the inner side protrudes further toward the opposite seat-side chain belt 120 (i.e., the right side of the figure) than the inner edge S12 of the front end E61 and the rear end E71 on the outer side. Correspondingly, in the second seat-side chain element 122B, the inner edge S21 of the front end E82 and the rear end E92 on the inner side protrudes further toward the opposite insert-side chain belt 110 (i.e., the left side of the figure) than the inner edge S22 of the front end E81 and the rear end E91 on the outer side. Similarly, in the first seat-side chain element 122A, the inner edge S31 of the front end E32 on the inner side protrudes further toward the opposite insert-side chain belt 110 (i.e., the left side of the figure) than the inner edge S32 of the front end E31 on the outer side. Thus, compared with the decorative portion (bevel or angled portion) on the front side, the lateral contact area between the round head portion / semi-round head portion on the back side and the opposite round head portion / semi-round head portion in the left-right direction Y is increased, thereby further improving the interlocking effect on the back side. However, the present invention is not limited to this and can be adjusted according to needs.

[0053] In addition, in this embodiment, Figure 1 and Figure 2As shown, the insert-pin side chain belt 110 also includes an insert-pin side core wire 116, and a plurality of insert-pin side chain elements 112 and an insert-pin 114 are arranged on the insert-pin side core wire 116. Correspondingly, the seat-bar side chain belt 120 also includes a seat-bar side core wire 126, and a plurality of seat-bar side chain elements 122 (including a first seat-bar side chain element 122A and a second seat-bar side chain element 122B) and a seat-bar 124 are arranged on the seat-bar side core wire 126. As an example, a plurality of insert-pin side chain elements 112 and an insert-pin 114 are, for example, formed on the insert-pin side core wire 116 by injection molding, thereby constituting the insert-pin side chain belt 110, and can be sewn on a product by stitching. Similarly, a plurality of seat-bar side chain elements 122 and a seat-bar 124 are, for example, formed on the seat-bar side core wire 126 by injection molding, thereby constituting the seat-bar side chain belt 120, and can be sewn on a product by stitching. That is, the insert-pin side chain tape 110 and the seat-bar side chain tape 120 are zipper chain tapes that do not use fastener tapes, so that the chain elements and the corresponding insert-pin / seat-bar are connected in series with a core. However, in other embodiments not shown, the insert-pin side chain tape 110 and the seat-bar side chain tape 120 can also be zipper chain tapes with zipper tapes, so that the chain elements and the corresponding insert-pin / seat-bar are formed (by injection molding or sewing, etc.) on the zipper tape. The present utility model does not limit the types of the insert-pin side chain tape 110 and the seat-bar side chain tape 120 used in the zipper chain 100. As long as the insert-pin side chain tape 110 and the seat-bar side chain tape 120 used in the zipper chain 100 have the insert-pin 114 and the seat-bar 124, and the insert-pin side chain elements 112 and the seat-bar side chain elements 122 are special-shaped chain elements with different shapes on the front and back sides, the above-mentioned structural setting described in this embodiment is applicable, and the rest can be adjusted according to needs.

[0054] In summary, in the zipper chain of the present invention, the insert rod has an insert rod chain tooth portion that is engaged with the opposite first seat rod side chain tooth (adjacent chain tooth), at least the front end portions of the front side and the back side of the insert rod chain tooth portion each have a protruding semicircular head portion, the rear end portions of the front side and the back side of the first seat rod side chain tooth each have a protruding semicircular head portion, and the front end portion of the front side of the first seat rod side chain tooth has a decorative portion that is different in shape from the semicircular head portion (that is, the front and rear ends of the front side of the first seat rod side chain tooth have different shapes). In this way, not only can the front end portion of the back side of the insert rod chain tooth portion and the rear end portion of the back side of the first seat rod side chain tooth be engaged with each other through the semicircular head portion to obtain an engaging effect, but the front end portion of the front side of the insert rod chain tooth portion and the rear end portion of the front side of the first seat rod side chain tooth can also be engaged with each other through the semicircular head portion to further enhance the engaging effect, thereby enhancing the transverse tensile strength near the insert rod and the seat rod. In addition, the front end portion of the front side of the first seat rod side chain tooth can provide a decorative effect. Preferably, in the insert rod chain element portion, the semicircular head formed at the front end portion of the front side and the semicircular head formed at the front end portion of the back side are staggered in the front-to-back direction, and in the first seat rod side chain element, the semicircular head formed at the rear end portion of the front side and the semicircular head formed at the rear end portion of the back side are staggered in the front-to-back direction, thereby further improving the horizontal pulling strength near the insert rod and the seat rod. Accordingly, the zipper chain of the utility model can have both the decorative effect on the front side and the fitting effect on the back side, and improve the horizontal pulling strength near the insert rod and the seat rod.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model 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 solution recorded 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 solution to deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A zipper chain (100), characterized in that: include: The insert-side tooth chain belt (110) comprises a plurality of insert-side chain teeth (112) having different shapes on the front side and the back side and arranged along the front-back direction (X), and an insert (114) arranged at the rear end of the insert-side chain teeth (112); and A seat bar side tooth chain belt (120) comprises a plurality of seat bar side chain teeth (122) having different shapes on the front side and the back side and arranged along the front-back direction (X), and a seat bar (124) arranged at the rear end of the seat bar side chain teeth (122), wherein The plurality of insert-side chain teeth (112) of the insert-side chain belt (110) and the plurality of seat-bar side chain teeth (122) of the seat-bar side chain belt (120) are meshed with each other. The seat rod side chain tooth (122) comprises a first seat rod side chain tooth (122A) adjacent to the seat rod (124), and at least one second seat rod side chain tooth (122B) arranged in a direction opposite to the seat rod (124). The insert rod (114) has an insert rod tooth portion (114a) engaged with the first seat rod side tooth (122A) facing the first seat rod. At least the front end of the inserting rod side chain tooth (112) on the front side and the back side of the inserting rod chain tooth portion (114a) has a semicircular head protruding toward the seat rod side chain tooth belt (120). The front side and the back side of the first seat rod side chain element (122A) close to the seat rod (124) each have a semicircular head protruding toward the insert rod side chain belt (110), and The front end portion of the front side of the first seat rod side fastener element (122A) opposite to the seat rod (124) has a decorative portion, and the decorative portion has a shape different from the semicircular head portion.

2. The zipper chain (100) according to claim 1, characterized in that: In the insert chain element portion (114a), the semicircular head portion formed at the front end portion on the front side and the semicircular head portion formed at the front end portion on the back side are staggered in the front-rear direction (X).

3. The zipper chain (100) according to claim 1 or 2, characterized in that: In the first seat rod side coupling element (122A), the semicircular head portion formed at the rear end portion on the front side and the semicircular head portion formed at the rear end portion on the back side are staggered in the front-rear direction (X).

4. The zipper chain (100) according to claim 1 or 2, characterized in that: The front side and the back side of the inserting rod chain element portion (114a) opposite to the rear end of the inserting rod side chain element (112) each have a semicircular head protruding toward the seat rod side chain belt (120).

5. The zipper chain (100) according to claim 1 or 2, characterized in that: In the first seat-side fastener element (122A), the decorative portion formed at the front end portion of the front side extends obliquely toward the insert-side fastener tape (110).

6. The zipper chain (100) according to claim 1 or 2, characterized in that: The front end portion of the inner side of the first seat rod side chain tooth (122A) opposite to the seat rod (124) has a semicircular head portion protruding toward the insert rod side chain belt (110), and In the first seat rod side chain element (122A), the inner edge of the semicircular head formed by the front end portion on the inner side extends further inward in the left-right direction (Y) than the inner edge of the decorative portion formed by the front end portion on the outer side.

7. The zipper chain (100) according to claim 1 or 2, characterized in that: The front side of the insert-side chain element (112) has a decorative portion extending obliquely from the front end and the rear end toward the seat-side chain element (120). The inner side of the insert-side chain element (112) has a round head portion protruding from the front end and the rear end toward the seat-side chain element (120), and In the insert side fastener element (112), the inner edge of the round head portion formed on the inner side extends further inward in the left-right direction (Y) than the inner edge of the decorative portion formed on the outer side.

8. The zipper chain (100) according to claim 1 or 2, characterized in that: The front side of the second seat rod side chain element (122B) has a decorative portion extending obliquely from the front end and the rear end toward the insert rod side chain belt (110). The inner side of the second seat rod side chain tooth (122B) has a round head portion protruding from the front end and the rear end toward the insert rod side chain belt (110), and In the second seat rod side fastener element (122B), the inner edge of the round head portion formed on the inner side extends further inward in the left-right direction (Y) than the inner edge of the decorative portion formed on the outer side.

9. The zipper chain (100) according to claim 1 or 2, characterized in that: The insert-side tooth chain belt (110) further comprises an insert-side core wire (116), a plurality of the insert-side chain teeth (112) and the insert pins (114) being arranged on the insert-side core wire (116), The seat rod side tooth chain belt (120) further comprises a seat rod side core wire (126), and a plurality of the seat rod side chain elements (122) and the seat rod (124) are arranged on the seat rod side core wire (126).

Images