TWI824721B - Reinforced spiral tooth line zipper - Google Patents

Abstract

A reinforced spiral tooth type line zipper, which is sewn with first and second chain teeth spirally wound into rows. Each first and second chain teeth are provided with a first tooth head and a second tooth head that mesh with each other. Two-tooth head, the first upper arc convex portion of each first tooth head contacts the lower edge of the second upper leg section of the adjacent second sprocket tooth, and each first lower arc convex portion contacts the second second portion of the other second sprocket tooth. The upper edge of the lower leg segment, and the second upper arc convex portion of each second tooth head contacts the lower edge of the first upper leg segment of the adjacent first sprocket tooth, and each second lower arc convex portion contacts the lower edge of the first upper leg segment of the adjacent first sprocket tooth. The upper edge of the first lower leg section further improves the meshing strength of the first sprocket tooth and the second sprocket tooth, so that the first sprocket tooth and the second sprocket tooth can be prevented from being improperly separated when the zipper is folded forward and backward under pressure. And it complies with the zipper tooth pitch specifications and flexibility.

Description

Reinforced spiral tooth line zipper

The invention relates to the technical field of zippers, and in particular, to a reinforced spiral tooth line zipper.

The structure of a general nylon zipper 9 is as shown in Figures 8 and 9. The nylon zipper 9 is sewn on the adjacent sides of two zipper tapes 91 with rows of opposite sprocket teeth 92 and 93, and two rows of sprocket teeth 92 and 93. Each is formed by a spiral winding arrangement of thermoplastic resin lines. The spiral coil portions 94 and 95 of the two rows of sprocket teeth 92 and 93 each have tooth heads 96 and 97 with opposite sides meshing with each other, and the two rows of sprocket teeth 92 and 93 have a common The slide is equipped with a zipper head 98, which moves back and forth to open and close the two rows of chain teeth 92 and 93. The upper and lower ends of the nylon zipper 9 must be fixed with upper and lower stops on the two rows of chain teeth 92 and 93 to limit the reciprocation of the zipper head 98. Displacement stroke.

In the specifications and dimensions of the two rows of sprocket teeth 92 and 93 of the current nylon zipper 9, as shown in Figures 8 to 11, in the three meshing states of the zipper teeth, when the cross-sectional diameter of the spiral loop portions 94 and 95 is 0.76 mm At this time, the tooth pitch of each two sprocket teeth 92 and the tooth pitch of each two sprocket teeth 93 are respectively set to 1.78mm, and the three tooth heads 96, 96', and 96" of the sprocket teeth 92 mesh with the three tooth heads of the sprocket teeth 93 respectively. 97, 97', 97", let the tooth heads 96, 96', 96" of sprocket tooth 92 and the tooth heads 97, 97', 97" of sprocket tooth 93 form the left and right lateral tensile force, but the tooth head of sprocket tooth 92 96, 96', 96" and the spiral coil portion 95 of the sprocket teeth 93 There is no mutual blocking, and the tooth heads 97, 97', 97" of the chain teeth 93 also do not block the spiral ring portion 94 of the chain teeth 92. Therefore, when the nylon zipper 9 is folded back and forth and is stressed, , the sprocket teeth 92 and the sprocket teeth 93 are easily detached, thereby affecting the reliability and durability. Therefore, how to solve the above problems is an issue that relevant industry players are eager to study.

The main purpose of the present invention is to further improve the meshing strength of the first sprocket teeth and the second sprocket teeth, so that the first sprocket teeth and the second sprocket teeth can be prevented from being improperly separated when the zipper is folded forward and backward under pressure, and Comply with zipper tooth pitch specifications and flexibility.

In order to achieve the above purpose, the reinforced spiral tooth line zipper of the present invention includes a first zipper tape and a second zipper tape adjacent side by side. The side edge of the first zipper tape is sewn with a first row of sprocket teeth. A row of sprocket teeth is made of thermoplastic resin lines spirally wound and arranged into a plurality of spaced first sprocket teeth; a second row of sprocket teeth is sewn on the side edge of the second zipper tape, and the second row of sprocket teeth is made of thermoplastic resin lines. The second sprocket teeth are spirally wound and arranged at a plurality of intervals; each first sprocket tooth and the second sprocket tooth are provided with a first tooth head and a second tooth head with opposite sides meshing with each other; each first sprocket tooth is composed of a first sprocket tooth and a second sprocket tooth. A first upper leg section and an opposite first lower leg section extend from both ends of the tooth head toward the other side in the width direction, and the other side of the first upper leg section of each first sprocket tooth forms a first inversion portion connected to the adjacent first The first lower leg section of the sprocket teeth; each second sprocket tooth has a second upper leg section and an opposite second lower leg section extending from both ends of the second tooth head towards the other side in the width direction, and the second upper leg section of each second sprocket tooth The other side of the leg segment forms a second reversal part connected to the second lower leg segment of the adjacent second sprocket tooth; each first tooth head has a A first upper arc convex portion protruding outwards is provided on one side close to the first upper leg section, and a first lower arc convex portion protruding outwards is provided on the other side of each first tooth head close to the first lower leg section; One side of each second tooth head is provided with an outwardly protruding second upper arc convex portion near the second upper leg section, and the other side of each second tooth head is provided with an outwardly projecting second protruding portion near the second lower leg section. Lower arc convex portion; the first upper arc convex portion of each first tooth head contacts the lower edge of the second upper leg section of the adjacent second sprocket tooth, and each first lower arc convex portion contacts another adjacent second sprocket tooth The upper edge of the second lower leg section; and the second upper arc convex portion of each second tooth head contacts the lower edge of the first upper leg section of the adjacent first chain tooth, and each second lower arc convex portion contacts the other adjacent The upper edge of the first lower leg of the first sprocket tooth.

In the aforementioned reinforced spiral tooth type line zipper, the top end and the bottom end of the first tooth head of each first sprocket element are aligned vertically with each other, and the top end and bottom end of the second tooth head of each second sprocket element are aligned vertically with each other.

The aforementioned reinforced spiral tooth-shaped line zipper, wherein the first upper arc convex portion of each first tooth head is tapered upward to connect to the top of the first tooth head in a curved arc, and the first upper arc convex portion is tapered in a curved arc. Connecting downward to the bottom end of the first tooth head, the first lower arc convex portion of each first tooth head tapers in a curved arc and connects upward to the top of the first tooth head, and the first lower arc convex portion tapers in a curved arc Connect downward to the bottom of the first tooth head.

The aforementioned reinforced spiral tooth-shaped line zipper, wherein the second upper arc convex portion of each second tooth head is tapered upward to connect to the top of the second tooth head in a curved arc, and the second upper arc convex portion is tapered in a curved arc. Connecting downward to the bottom end of the second tooth head, the second lower arc convex portion of each second tooth head tapers in a curved arc and connects upward to the top of the second tooth head, and the second lower arc convex portion tapers in a curved arc Connect downward to the bottom of the second tooth head.

【Invention】

100:zipper

1: First zipper tape

2:Second zipper tape

3: First sprocket row

31:First sprocket tooth

32:First tooth head

33: The first upper leg section

34: First upper arc convex part

35: The first kick

36: The first lower arc convex part

37:The first reversal part

4: Second sprocket row

41:Second sprocket teeth

42:Second tooth head

43: The second upper foot section

44: The second upper arc convex part

45: The second kick

46: The second lower arc convex part

47:Second Reversal Part

5:Core wire

6: Suture line

7: Zipper head

【Prior technology】

9: Nylon zipper

91: Zipper tape

92:Sprocket teeth

93:Sprocket teeth

94: Spiral circle part

95: Spiral circle part

96, 96’, 96”: tooth head

97, 97’, 97”: tooth head

98:Zip puller

The first figure is a schematic diagram of the reinforced spiral tooth line zipper of the present invention.

The second figure is an enlarged view of a part of the reinforced spiral tooth line zipper of the present invention.

The third figure is a three-dimensional view of the meshed state of the first sprocket teeth and the second sprocket teeth of the reinforced spiral tooth-type line zipper of the present invention.

The fourth figure is a schematic diagram of the meshing state of the first sprocket teeth and the second sprocket teeth of the reinforced spiral tooth line zipper of the present invention.

The fifth figure is a three-dimensional exploded view (1) of the first sprocket element and the second sprocket element of the reinforced spiral tooth line zipper of the present invention.

The sixth figure is a three-dimensional exploded view (2) of the first sprocket element and the second sprocket element of the reinforced spiral tooth line zipper of the present invention.

The seventh figure is an exploded schematic diagram of the first sprocket element and the second sprocket element of the reinforced spiral tooth line zipper of the present invention.

The eighth picture is a schematic diagram of a commonly used nylon zipper.

Figure 9 is a schematic diagram of the engagement state of the first sprocket teeth of a commonly used nylon zipper.

Figure 10 is a schematic diagram of the second engagement state of the commonly used nylon zipper.

Figure 11 is a schematic diagram of the third meshing state of the commonly used nylon zipper.

Regarding the technical means and effects adopted by the present invention to achieve the above objectives, feasible embodiments are enumerated and described as follows with reference to the drawings:

First, please refer to the first to fourth figures. It can be clearly seen from the figures that the zipper 100 of the present invention mainly uses a reinforced spiral tooth line structure. The zipper 100 includes side-by-side adjacent first zipper tapes 1 and Second zipper tape 2, first zipper tape 1 The side edge is sewn with a suture line 6 to have a first sprocket tooth row 3 and a core thread 5. The first sprocket tooth row 3 is made of thermoplastic resin lines spirally wound and arranged into a plurality of first sprocket teeth 31 distributed at intervals; the second zipper cloth A second sprocket row 4 and a core thread 5 are sewn on the side edge of the belt 2 with a suture 6. The second sprocket row 4 is also made of thermoplastic resin lines spirally wound and arranged into a plurality of second sprocket teeth 41 distributed at intervals; The first sprocket teeth 31 and the second sprocket teeth 41 are provided with first tooth heads 32 and second tooth heads 42 with opposite sides meshing with each other, and the left and right rows of the first sprocket teeth 31 and the second sprocket teeth 41 are provided with zippers that slide together. The head 7 moves back and forth to open and close the first sprocket teeth 31 and the second sprocket teeth 41 in the left and right rows.

Please refer to the second to seventh figures again. The top and bottom ends of the first tooth heads 32 of each first sprocket tooth 31 of the zipper 100 of the present invention are aligned with each other up and down. Each first sprocket tooth 31 is formed by a first tooth head. 32 has a first upper leg section 33 and an opposite first lower leg section 35 extending toward the other side in the width direction, and the other side of the first upper leg section 33 of each first sprocket tooth 31 forms a first reversal portion 37 connected to The first lower leg section 35 is adjacent to the first sprocket tooth 31 . The top and bottom ends of the second tooth heads 42 of each second sprocket tooth 41 are aligned vertically with each other. Each second sprocket tooth 41 also has a second upper leg section 43 extending from both ends of the second tooth head 42 toward the other side in the width direction. A second reversal portion 47 is formed on the opposite side of the second lower leg section 45 and the second upper leg section 43 of each second sprocket element 41 and is connected to the second lower leg section 45 of the adjacent second sprocket element 41 .

The zipper 100 of the present invention is provided with an outwardly protruding first upper arc convex portion 34 on one side of each first tooth head 32 close to the first upper leg section 33, and the other side of each first tooth head 32 is close to the first lower leg. The segment 35 is provided with a first lower arcuate convex portion 36 protruding outward. The first upper arcuate convex portion 34 of each first tooth head 32 is gradually tapered upward and connected to the top of the first tooth head 32, and the An upper arc convex portion 34 is connected downwardly to the bottom end of the first tooth head 32 in a tapered arc, and a first lower arc convex portion 36 of each first tooth head 32 is connected upwardly to the first tooth head in a tapered arc. 32, and the first lower arc convex portion 36 tapers downwards to connect to the bottom end of the first tooth head 32. Each second tooth head 42 is provided with a second upper arc convex portion 44 protruding outwards on one side near the second upper leg section 43, and the other side of each second tooth head 42 is provided with an upward facing protrusion 44 near the second lower leg section 45. The second lower arc convex portion 46 protrudes outward, and the second upper arc convex portion 44 of each second tooth head 42 is connected upward to the top of the second tooth head 42 in a tapered arc, and the second upper arc convex portion 44 The second lower arc convex portion 46 of each second tooth head 42 is connected upward to the top of the second tooth head 42 by tapering in a curved arc. The lower arc convex portion 46 is connected downward to the bottom end of the second tooth head 42 in a tapered arc.

Please refer to the second to fourth figures again. In the specifications and dimensions of the left and right rows of first sprocket teeth 31 and second sprocket teeth 41 of the zipper 100 of the present invention, when the cross-sectional diameter of the spiral resin line itself is 0.76mm , the tooth pitch of each two first sprocket teeth 31 and the tooth pitch of each two second sprocket teeth 41 are respectively set to 1.78mm. When the first sprocket teeth 31 and the second sprocket teeth 41 of the left and right rows of the zipper 100 are meshed with each other, the first upper arc convex portion 34 of the first tooth head 32 of each first sprocket tooth 31 contacts the second sprocket tooth 41 of the adjacent second sprocket tooth 41 . The lower edge of the two upper leg segments 43, and each first lower arc convex portion 36 contacts the upper edge of the second lower leg segment 45 of another adjacent second sprocket tooth 41; and the second tooth head 42 of each second sprocket tooth 41 The second upper arc convex portion 44 contacts the lower edge of the first upper leg section 33 of the adjacent first sprocket tooth 31 , and each second lower arc protrusion 46 contacts the first lower leg section of another adjacent first sprocket tooth 31 35 on the upper edge, thereby improving the meshing strength of the first sprocket tooth 31 and the second sprocket tooth 41, so that the zipper 100 can prevent the first sprocket tooth 31 and the second sprocket tooth 41 from being improperly separated when the zipper 100 is folded forward and backward and is stressed. , and Complies with zipper 100 tooth pitch specifications and flexibility.

The above embodiments are only for the convenience of illustrating the present invention, and are not intended to limit the scope of the present invention. Various simple changes and modifications that can be made by those skilled in the industry without departing from the spirit and scope of the present invention should still be included in the following patent applications. within range.

31:First sprocket tooth

32:First tooth head

33: The first upper leg section

34: First upper arc convex part

35: The first kick

36: The first lower arc convex part

41:Second sprocket teeth

42:Second tooth head

43: The second upper foot section

44: The second upper arc convex part

45: The second kick

46: The second lower arc convex part

Claims (4)

A reinforced spiral tooth line zipper includes a first zipper tape and a second zipper tape adjacent side by side. The side edge of the first zipper tape is sewn with a first row of sprocket teeth. The first row of sprocket teeth is composed of Thermoplastic resin lines are spirally wound and arranged into a plurality of first sprocket teeth distributed at intervals; a second row of sprocket teeth is sewn on the side edge of the second zipper tape, and the second row of sprocket teeth is spirally wound by thermoplastic resin lines. The second sprocket teeth are arranged around a plurality of spaced apart second sprocket teeth; each of the first sprocket teeth and the second sprocket teeth are provided with a first tooth head and a second tooth head with opposite sides meshing with each other, and each of the first sprocket teeth is formed by the third sprocket tooth. A first upper leg section and an opposite first lower leg section extend from both ends of a tooth head toward the other side in the width direction, and the other side of the first upper leg section of each first sprocket tooth forms a first reversal portion connected to the opposite side. The first lower leg section is adjacent to the first sprocket element; each second sprocket element has a second upper leg section and an opposite second lower leg section extending from both ends of the second tooth head towards the other side in the width direction, and each of the second sprocket teeth has a second upper leg section and an opposite second lower leg section. The other side of the second upper leg section of the second sprocket element forms a second inversion portion connected to the second lower leg section adjacent to the second sprocket element; one side of each first tooth head is close to the first upper leg section A first upper arc convex portion protruding outward is provided, and the other side of each first tooth head is provided with a first lower arc convex portion protruding outward near the first lower leg section; each second tooth One side of the head is provided with a second upper arc convex portion protruding outwards near the second upper leg section, and the other side of each second tooth head is provided with a second lower protruding portion protruding outwards close to the second lower leg section. Arc convex portion; the first upper arc convex portion of each first tooth head contacts the lower edge of the second upper leg section of the adjacent second chain tooth, and each first lower arc convex portion contacts another adjacent second sprocket tooth The upper edge of the second lower leg section of the second sprocket tooth; and the second upper arc convex portion of each second tooth head contacts the lower edge of the first upper leg section adjacent to the first sprocket tooth, and each of the The second lower arc convex portion contacts the first lower portion adjacent to the first sprocket tooth. The upper edge of the foot. The reinforced spiral tooth line zipper described in item 1 of the patent application, wherein the top and bottom ends of the first tooth heads of each first chain element are aligned vertically with each other, and the second ends of each second chain element are aligned vertically with each other. The top and bottom ends of the tooth heads are aligned up and down with each other. For example, in the reinforced spiral tooth line zipper described in item 1 of the patent application, the first upper arc convex portion of each first tooth head is connected upward to the top of the first tooth head in a tapered arc, and the The first upper arc convex portion is connected downwardly to the bottom end of the first tooth head in a tapered arc, and the first lower arc convex portion of each first tooth head is connected upwardly to the first tooth in a tapered arc. The first lower arc convex portion is connected to the bottom end of the first tooth head in a tapered arc. For example, the reinforced spiral tooth line zipper described in item 3 of the patent application, wherein the second upper arc convex portion of each second tooth head is connected upward to the top of the second tooth head in a tapered arc, and the The second upper arc convex portion is connected downwardly to the bottom end of the second tooth head in a tapered arc, and the second lower arc convex portion of each second tooth head is connected upwardly to the second tooth in a tapered arc. The second lower arc convex portion tapers downward to connect to the bottom end of the second tooth head.

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