Three-way combined zipper

Abstract

The invention relates to a three-way combined zipper which comprises a zipper head and a zipper strip, the zipper strip comprises two transverse zipper racks and a third zipper rack, and zipper teeth of the two transverse zipper racks face each other and can be sequentially meshed and connected into a whole in a staggered mode. Each zipper tooth of the two transverse zipper racks is provided with a C-shaped groove, the C-shaped grooves of the two corresponding and opposite zipper teeth of the two transverse zipper racks are meshed to form a clamping groove, the third zipper rack is provided with a plurality of third zipper teeth which are connected into a whole, and each third zipper tooth is provided with a clamping tooth which can be clamped into the clamping groove in a matched mode under pulling and pressing of a zipper head. Two first chain grooves and a third chain groove are formed in the zipper head, the two first chain grooves can correspondingly penetrate into the two transverse zipper racks respectively and enable the two transverse zipper racks to be meshed in a staggered mode, and the third chain groove can correspondingly penetrate into the third zipper rack and enable the clamping teeth of the third zipper teeth to be clamped into the clamping groove. According to the zipper, the unique zipper head and three zipper groove structures are adopted, so that the three zipper racks can be simultaneously zipped at one time, the operation is time-saving and time-saving, the zipper is convenient and rapid, and materials are saved.

Description

Technical Field

[0001] The present invention relates to the technical field of zipper products, and particularly to a three-way combined zipper. Background Art

[0002] Currently, zippers are all composed of two sets of chain structures. Through the chute on the zipper head, the teeth bite together when it slides, and finally two parallel objects are combined. In some special occasions, double-layer or multi-layer zippers are needed. However, zipping twice or multiple times is very inconvenient to operate.

[0003] For example, Chinese Utility Model Patent No. 202021640244.3 discloses a zipper-type three-in-one data cable, which includes a three-in-one data cable provided with a main line and a sub-line, and also includes three sleeves sleeved on the outer layer of the sub-line of the three-in-one data cable, a pull head sleeved outside the sleeve and slidable along the length direction of the sleeve, and chain teeth arranged in pairs between adjacent sleeves and capable of biting each other; when the pull head slides along the length direction of the sleeve, the adjacent chain teeth can be opened or closed. This zipper-type three-in-one data cable actually still uses two separate zippers arranged side by side.

[0004] Chinese Utility Model Patent No. 202421175750.8 discloses a double-layer expandable multi-chain zipper, which includes a cloth tape group, a second single-layer cloth tape, a third single-layer cloth tape and a pull head. The cloth tape group includes an expandable cloth tape and a first single-layer cloth tape. One end of the expandable cloth tape and the first single-layer cloth tape is fixedly connected, and the fixedly connected part is defined as the fixed end; a first row of chain teeth is provided in the extending direction of the fixed end, a second row of chain teeth is provided in the extending direction of the second single-layer cloth tape, and the first row of chain teeth and the second row of chain teeth can bite and disengage from each other; the side of the cloth tape group away from the second single-layer cloth tape is connected to the third single-layer cloth tape through a single-row chain strip. The original intention of this patent design is also compared with setting multiple parallel zippers on one cloth tape. By setting multiple cloth tapes and setting zippers at the connection of two cloth tapes, it actually also uses two separate zippers or multi-layer zippers, and it also requires two or more operations to close the three-layer cloth, and cannot be closed at one time. Summary of the Invention

[0005] In view of this, a three-way combined zipper with simple operation, compact structure, low cost and small occupied space is provided. By adopting a unique zipper head structure, it can simultaneously close three chain racks at one time, saving time and effort in operation, being convenient and fast, and saving materials.

[0006] A three-way combined zipper, comprising a zipper head and a zipper chain. The zipper chain includes two transverse zipper racks and a third zipper rack. The teeth of the two transverse zipper racks face each other and can be meshed with each other in sequence to form a whole. Each tooth of the two transverse zipper racks has a C-shaped groove. The C-shaped grooves of the corresponding opposite teeth of the two transverse zipper racks form a card slot after meshing. The third zipper rack has a plurality of third teeth connected together. Each third tooth has a locking tooth that can be fitted into the card slot under the pulling and pressing of the zipper head. Two first chain grooves and a third chain groove are provided in the zipper head. The two first chain grooves can respectively penetrate into the two transverse zipper racks to make the two transverse zipper racks mesh with each other alternately. The third chain groove can penetrate into the third zipper rack correspondingly to make the locking teeth of the third teeth snap into the card slot.

[0007] Preferably, the two first chain grooves and the third chain groove are basically arranged in a pin shape; the two first chain grooves and the third chain groove together form a cavity that can accommodate the inner cavities of the two transverse zipper racks and the third zipper rack; the two first chain grooves are arranged side by side at the bottom of the inner cavity of the zipper head, and the third chain groove is located at the top of the inner cavity of the zipper head; the inner cavity is in a pin shape.

[0008] Preferably, one end of the zipper head is the tooth entry end and the other end is the output end of the meshed teeth. The two first chain grooves are combined into a bottom groove. The bottom groove is in a tapered structure from the tooth entry end to the tooth output end. The two first chain grooves are a left chain groove and a right chain groove. The left chain groove is defined by a left side wall and a bottom wall, and the right chain groove is defined by a right side wall and the same bottom wall. The common bottom wall of the two and the left and right side groove walls define the bottom groove. When the two transverse zipper racks are zipped up, they pass through the bottom groove.

[0009] Preferably, one end of the zipper head is the tooth entry end and the other end is the output end of the meshed teeth. The third chain groove is in a downward-bending structure from the tooth entry end to the tooth output end. The top groove wall of the zipper head that defines the third chain groove is in a downhill structure from the tooth entry end to the tooth output end so that the third zipper rack is pressed into the corresponding card slot under the oblique limiting action of the top groove wall.

[0010] Preferably, the tooth entry ends of the same side of the two first chain grooves and the third chain groove are arranged in a divergent structure, while the tooth output ends on the other side are in a contracted shape and are connected together to form a pin-shaped outlet.

[0011] Preferably, the zipper head includes a base, two side walls, a top and a spacer pillar. The two side walls and the bottom surface of the base and the top define the two first chain grooves. The spacer pillar connects the front bottom end of the top and the front end of the base and is located between the two first chain grooves.

[0012] Preferably, the teeth of each of the lateral zipper racks respectively enter the corresponding first chain grooves under the guidance of one side wall and one side surface of the spaced struts; the two side walls are respectively provided with first wire grooves extending along the zipper direction for threading a strip for connecting the lateral zipper racks; the top is provided with a third wire groove extending along the zipper direction on the top groove wall of the third chain groove for threading a strip for connecting the third zipper rack.

[0013] Preferably, the third chain groove is formed on the bottom surface of the top and communicates with the two first chain grooves; the hollow positions of the third chain groove and the spaced struts correspond to each other up and down, the top end of the spaced strut is provided with a support portion for defining the bottom front end of the third chain groove, and the two sides of the third chain groove are defined by two third side groove walls, the bottom front end is defined by the support portion, and the top side is defined by the top groove wall.

[0014] Preferably, the two side surfaces of the spaced strut are arc-shaped side surfaces, the arc-shaped side surfaces are arcs along the zipper direction, the two arc-shaped side surfaces converge at the rear end of the spaced strut, and the rear end convergence of the spaced strut is the front end convergence of the two first chain grooves and the starting meshing position of the two lateral zipper racks; the top end of the spaced strut is provided with a support portion for defining the bottom front end of the third chain groove, the support portion slopes downward from the outside to the inside or from the front end to the rear end, the top surface of the support portion is a downward slope surface, and the rear end of the downward slope surface corresponds to the rear end convergence of the spaced strut and is the front end convergence of the third chain groove and the two first chain grooves and the convergence of the three three-zipper racks.

[0015] Preferably, the third chain groove is located above the middle of the two first chain grooves, the third chain groove and the two first chain grooves converge and communicate at the rear end, and the convergence of the third chain groove and the two first chain grooves at the rear end is a convex opening, and the size of the convex opening is set to be able to pass through the three-zipper racks meshed in a triangular shape.

[0016] In the above three-way combined zipper, by providing three chain grooves on the same zipper head, the zipper racks in three directions are simultaneously pulled in the same direction and at the same time. At the same time, left and right rows of C-shaped grooves are provided on the two lateral zipper racks, and a card slot is formed when the left and right rows of C-shaped grooves are engaged. The third zipper rack is squeezed and clamped into the card slot through the third chain groove on the zipper head, completing the combination of the three-way zipper chain at the same point synchronously. Therefore, the entire zipper structure is convenient to use, quick and efficient in operation, and only requires one zipper head and three zipper racks, with a simple and compact structure, less material used compared to the multi-layer zipper method, saving materials and costs, and can be widely applied to various application scenarios where two or more zippers are required to simultaneously pull two or three layers of cloth. Description of the Drawings

[0017] Figure 1It is a schematic three - dimensional exploded structure diagram of a three - way combined zipper provided by an embodiment of the present invention.

[0018] Figure 2 It is a schematic internal structure diagram of a three - way combined zipper provided by an embodiment of the present invention in the wave propagation direction.

[0019] Figure 3 It is a schematic internal structure diagram of a three - way combined zipper provided by an embodiment of the present invention in the heat conduction direction.

[0020] Figure 4 It is a schematic structure diagram of a vacuum oven in the preparation method of a three - way combined zipper applied to an embodiment of the present invention.

[0021] In the figure, the markings are: 10, zipper chain; 101, C - shaped groove; 101a, left C - shaped groove; 101b, right C - shaped groove; 103, clamping groove; 104, inlet end; 105, tooth output end of the chain; 106, convex opening; 11, transverse zipper rack; 13, first chain groove; 20, zipper head; 30, third zipper rack; 303, third chain tooth; 33, third chain groove; 35, locking tooth; 40, spacer pillar; 43, top end; 45, arc - shaped side; 46, rear end; 50, base; 501, downhill surface; 51, top; 52, left side wall; 59, right side wall; 53, bottom wall; 54, support part; 55, top groove wall; 56, inner cavity. Detailed implementation manners

[0022] The present invention will be described in detail below in conjunction with specific embodiments and the accompanying drawings.

[0023] Please refer to Figures 1 to 4 , an embodiment of the present invention provides a three - way combined zipper, which includes a zipper head 20 and a zipper chain 10. The zipper chain 10 includes two transverse zipper racks 11 and a third zipper rack 30. The teeth of the two transverse zipper racks 11 face each other and can be meshed alternately in sequence to form an integral body. Each tooth of the two transverse zipper racks 11 respectively has a C - shaped groove 101, and the C - shaped grooves 101 of the corresponding opposite teeth of the two transverse zipper racks 11 form a clamping groove 103 after meshing. As Figure 3As shown, the C-shaped groove 101 has a left C-shaped groove 101a and a right C-shaped groove 101b. The sequentially connected left C-shaped groove 101a and the sequentially connected right C-shaped groove 101b together form a card slot 103 extending along the direction of the zipper. The third zipper rack 30 has a plurality of third teeth 303 connected integrally. Each third tooth 303 has a locking tooth 35 that can be fitted into the card slot 103 under the pulling and pressing of the zipper head 20. Two first tooth grooves 13 and a third tooth groove 33 are provided in the zipper head 20. The two first tooth grooves 13 can respectively penetrate into the two transverse zipper racks 11 and enable the two transverse zipper racks 11 to be meshed staggeredly. The third tooth groove 33 can penetrate into the third zipper rack 30 correspondingly and enable the locking teeth 35 of the third teeth 303 to be locked into the card slot 103.

[0024] Preferably, the two first tooth grooves 13 and the third tooth groove 33 are arranged in a substantially L-shaped pattern; the two first tooth grooves 13 and the third tooth groove 33 together form a cavity 56 that can accommodate the two transverse zipper racks 11 and the third zipper rack 30; the two first tooth grooves 13 are arranged side by side at the bottom of the cavity 56 of the zipper head 20 and the third tooth groove 33 is located at the top 51 of the cavity 56 of the zipper head 20; as Figure 4 shown, the cavity 56 is preferably in an L-shaped pattern.

[0025] Preferably, one end of the zipper head 20 is a tooth inlet end 104 and the other end is a tooth output end 105 for biting. The two first tooth grooves 13 are combined into a bottom groove 55. The bottom groove 55 is in a tapered structure from the tooth inlet end 104 to the tooth output end 105. The two first tooth grooves 13 are a left tooth groove and a right tooth groove. The left tooth groove is defined by a left side wall 52 and a bottom wall 53. The right tooth groove is defined by a right side wall 59 and the same bottom wall 53. The common bottom wall 53 of the two and the left and right side groove walls 52, 59 define the bottom groove 55. When the two transverse zipper racks 11 are zipped, they pass through the bottom groove 55.

[0026] Preferably, one end of the zipper head 20 is a tooth inlet end 104 and the other end is a tooth output end 105 for biting. As Figure 2 and 3 shown, the third tooth groove 33 is in a downward-bending structure from the tooth inlet end 104 to the tooth output end 105. The top wall of the zipper head 20 that defines the third tooth groove 33 is in a downhill structure from the tooth inlet end 104 to the tooth output end 105 so that the third zipper rack 30 is pressed into the corresponding card slot 103 under the oblique limiting action of the top wall, thereby enabling the three zipper racks to be squeezed and meshed together simultaneously. As Figure 3 shown, the two first tooth grooves 13 and the third tooth groove 33 through which the three zipper racks correspondingly pass are in a tapered shape from the tooth inlet end 104 to the tooth output end 105, and the tapered curvatures are substantially the same.

[0027] As Figure 2 and 3 shown, in some preferred embodiments, the entry ends 104 of the chain teeth on the same side of the two first chain grooves 13 and the third chain groove 33 are arranged in a divergent structure, while the exit ends 105 of the chain teeth on the other side are in a contracted shape and communicate with each other to form a triangular exit. The triangular exit is adapted to the combined structural shape of the two transverse zipper racks 11 and the third zipper rack 30. That is, when passing through the triangular exit, the three zipper racks are combined into one and can smoothly pass through the triangular exit, or under the extrusion of the inner walls of the triangular exit in each direction, the three zipper racks can be engaged into one Further, the slider 20 includes a base 50, two side walls 52, a top 51 and spacer struts 40. The two side walls 52 and the base 50 and the bottom surface of the top 51 define the two first chain grooves 13. The spacer struts 40 connect the front bottom end of the top 51 and the front end of the base 50 and are located between the two first chain grooves 13.

[0028] Preferably, the chain teeth of each transverse zipper rack 11 enter the corresponding first chain groove 13 under the guidance of one side wall 52 and one side surface of the spacer strut 40 respectively; the two side walls 52 are respectively provided with first wire grooves extending along the zipper direction to thread the cloth strips connecting the transverse zipper racks 11; the top 51 is provided with a third wire groove extending along the zipper direction on the top groove wall 55 of the third chain groove 33 to thread the cloth strips connecting the third zipper rack 30.

[0029] In some preferred embodiments, the third chain groove 33 is opened on the bottom surface of the top 51 and communicates with the two first chain grooves 13; the hollow positions of the third chain groove 33 and the spacer struts 40 correspond to each other up and down. The top end 43 of the spacer strut 40 is provided with a support portion 54 that defines the front bottom end of the bottom of the third chain groove 33. The two sides of the third chain groove 33 are defined by two third side groove walls, the front bottom side is defined by the support portion 54, and the top side is defined by the top groove wall 55.

[0030] Preferably, the two side surfaces of the spacer post 40 are arcuate side surfaces 45, the arcuate side surfaces 45 are arcs along the direction of the zipper, the two arcuate side surfaces 45 meet at the rear end 46 of the spacer post 40, and the meeting point of the rear ends 46 of the spacer post 40 is the front end confluence of the two first chain grooves 13 and the starting meshing point of the two lateral zipper racks 11; a support portion 54 for defining the bottom front end of the third chain groove 33 is provided at the top end 43 of the spacer post 40, the support portion 54 has a downhill trend from outside to inside or from the front end to the rear end 46, the top surface of the support portion 54 is a downhill surface 501, and the rear end 46 of the downhill surface 501 corresponds to the meeting point of the rear ends 46 of the spacer post 40 and is the confluence of the third chain groove 33 and the front ends of the two first chain grooves 13 and the confluence of three three-zipper racks.

[0031] In some specific embodiments, the third chain groove 33 is located above the middle of the two first chain grooves 13, the third chain groove 33 communicates with the two first chain grooves 13 at the rear end 46, and the confluence of the third chain groove 33 and the two first chain grooves 13 at the rear end 46 forms a convex opening 106, and the size of the convex opening 106 is set to be able to pass through the three-zipper racks meshed in a triangular shape.

[0032] In the above three-way combined zipper, by providing three chain grooves on the same zipper head, the zipper racks in three directions are simultaneously pulled in the same direction and at the same time. At the same time, left and right rows of C-shaped grooves are provided on the two lateral zipper racks, and a card slot is formed when the left and right rows of C-shaped grooves are engaged. The third zipper rack is squeezed and locked into the card slot through the third chain groove on the zipper head, completing the combination of the three-way zipper at the same point simultaneously. Therefore, the entire zipper structure is convenient to use, fast and efficient in operation, and only requires one zipper head and three zipper racks, with a simple and compact structure, less material used compared to the multi-layer zipper method, saving materials and costs, and can be widely applied to various application scenarios where two or more zippers are required to simultaneously pull two or three layers of cloth.

[0033] It should be noted that the present invention is not limited to the above embodiments. According to the creative spirit of the present invention, those skilled in the art can also make other changes, and these changes made based on the creative spirit of the present invention should be included within the scope of protection required by the present invention.

Claims

1. A three-way combined zipper, comprising a slider and a zipper tape, characterized in that, The zipper chain includes two horizontal zipper racks and a third zipper rack. The teeth of the two horizontal zipper racks face each other and can be sequentially meshed with each other to form a whole. Each tooth of the two horizontal zipper racks has a C-shaped groove. The C-shaped grooves of the corresponding opposite teeth of the two horizontal zipper racks form a clamping groove after meshing. The third zipper rack has a plurality of third teeth connected together. Each third tooth has a clamping tooth that can be fitted into the clamping groove under the pulling and pressing of the zipper head. Two first chain grooves and a third chain groove are provided in the zipper head. The two first chain grooves can respectively penetrate into the two horizontal zipper racks to make the two horizontal zipper racks mesh with each other alternately. The third chain groove can penetrate into the third zipper rack correspondingly to make the clamping teeth of the third teeth snap into the clamping groove.

2. The three-way combined zipper according to claim 1, wherein, The two first chain grooves and the third chain groove are basically arranged in a character 'pin' shape; the two first chain grooves and the third chain groove together form a cavity that can accommodate the inner cavities of the two horizontal zipper racks and the third zipper rack; the two first chain grooves are arranged side by side at the bottom of the inner cavity of the zipper head, and the third chain groove is located at the top of the inner cavity of the zipper head; the inner cavity is in a character 'pin' shape.

3. The three-way combined zipper according to claim 1, characterized in that, One end of the zipper head is the tooth entry end and the other end is the output end of the meshed teeth. The two first chain grooves are combined into a bottom groove. The bottom groove is in a tapered structure from the tooth entry end to the tooth output end. The two first chain grooves are a left chain groove and a right chain groove. The left chain groove is defined by a left side wall and a bottom wall, and the right chain groove is defined by a right side wall and the same bottom wall. The common bottom wall of the two and the left and right side groove walls define the bottom groove. When the two horizontal zipper racks are zipped together, they pass through the bottom groove.

4. The three-way combined zipper according to claim 1, wherein One end of the zipper head is the tooth entry end and the other end is the output end of the meshed teeth. The third chain groove is in a downward-bending structure from the tooth entry end to the tooth output end. The top groove wall of the zipper head that defines the third chain groove is in a downhill structure from the tooth entry end to the tooth output end so that the third zipper rack is pressed into the corresponding clamping groove under the oblique defining action of the top groove wall.

5. The three-way combined zipper according to claim 1, wherein The two first chain grooves and the third chain groove are arranged in a divergent structure at the tooth entry end on the same side, and are in a contracted shape and connected together at the tooth output end on the other side to form a character 'pin' - shaped outlet.

6. The three-way combined zipper according to claim 1, wherein The zipper head includes a base, two side walls, a top and a spacer pillar. The two side walls and the base and the bottom surface of the top define the two first chain grooves. The spacer pillar connects the front bottom end of the top and the front end of the base and is located between the two first chain grooves.

7. The three-way combined zipper according to claim 6, wherein, The teeth of each horizontal zipper rack respectively enter the corresponding first chain groove under the guidance of a corresponding side wall and one side surface of the spacer pillar; the two side walls are respectively provided with first wire grooves extending along the zipper direction to thread the cloth strips connecting the horizontal zipper racks; the top is provided with a third wire groove extending along the zipper direction on the top groove wall of the third chain groove to thread the cloth strips connecting the third zipper rack.

8. The three-way combined zipper according to claim 6, characterized in that, The third chain groove is formed on the bottom surface of the top and communicates with the two first chain grooves; the hollow position of the third chain groove corresponds to the spacer pillar up and down, and a support portion for limiting the bottom front end of the third chain groove is provided at the top end of the spacer pillar. The two sides of the third chain groove are defined by two third side groove walls, the bottom front end is defined by the support portion, and the top side is defined by the top groove wall.

9. The three-way combined zipper according to claim 6, wherein, The two side surfaces of the spacer pillar are arc-shaped side surfaces. The arc-shaped side surfaces are arcs along the direction of the zipper. The two arc-shaped side surfaces meet at the rear end of the spacer pillar. The meeting point at the rear end of the spacer pillar is the front end convergence of the two first chain grooves and the starting meshing point of the two lateral zipper teeth; a support portion for limiting the bottom front end of the third chain groove is provided at the top end of the spacer pillar. The support portion slopes downward from outside to inside or from front to back. The top surface of the support portion is a downward slope surface. The rear end of the downward slope surface corresponds to the meeting point at the rear end of the spacer pillar and is the front end convergence of the third chain groove and the two first chain grooves and the convergence point of the three triple zipper teeth.

10. The three-way combined zipper according to claim 1, characterized in that, The third chain groove is located above the middle of the two first chain grooves. The third chain groove converges and communicates with the two first chain grooves at the rear end. The convergence point of the third chain groove and the two first chain grooves at the rear end is a convex opening. The size of the convex opening is set to be able to pass through the triple zipper teeth meshed in a triangular pattern.

Images