Chain teeth, chain tape, and zipper

Abstract

The present invention discloses a chain tooth, which includes an engaging portion and a fixing portion. The fixing portion has a belt slot for clamping on the edge of a cloth belt. The included angle between the central plane of the engaging portion in the tooth thickness direction and the central plane of the belt slot in the slot width direction is less than 180 degrees and greater than 90 degrees. In this chain tooth, by changing the included angle between the central plane of the engaging portion of the chain tooth in the tooth thickness direction and the central plane of the belt slot in the slot width direction, the included angle between two cloth belts to be engaged can be changed, so as to meet the use of a closed opening with the included angle between the two side mouth edges not being a flat angle, and the use method is simple and convenient. In summary, this chain tooth can effectively solve the problem that it is inconvenient to use a zipper for a non-planar closed opening. The present invention also discloses a chain tape using the above chain tooth, and also discloses a zipper including the above chain tooth.

Description

Technical Field

[0001] The present invention relates to the technical field of zippers. More specifically, it relates to a tooth, a tape using the above tooth, and a zipper including the above tooth. Background Art

[0002] A zipper is a connecting piece that relies on continuously arranged teeth to join or separate items, and is widely used in clothing, bags, and tents. However, existing zippers are usually straight, and the two side tapes and the teeth are all on the same plane. This causes such ordinary zippers to get stuck on the plane when installed at non-planar positions, such as at the corners of objects (such as the corners of luggage, the bends of tent brackets).

[0003] Existing zippers are usually straight, and the two side tapes and the teeth are all on the same plane. When the zipper is installed at the corner of an object (on the edge line of two planes), the installation of the zipper will press against the edge line, affecting the smoothness of the zipper.

[0004] It is often difficult to apply zippers to concave corners. Since the teeth are straight and have a certain width, the teeth cannot fit the edge line. By bending the angle of the teeth, the tape also forms an angle, so that there can also be a matching zipper at the concave corner. The upper surface of an ordinary zipper is usually flat, and the edge has a vertical transition, resulting in the edge of the zipper being very sharp, which is dangerous when installed at a convex position such as a bend of an object.

[0005] In summary, how to effectively solve the problem that zippers are inconvenient to use at non-planar closures is an urgent problem that those skilled in the art need to solve currently. Summary of the Invention

[0006] In view of this, the first object of the present invention is to provide a tooth, which can effectively solve the problem that zippers are inconvenient to use at non-planar closures. The second object of the present invention is to provide a tape using the above tooth. The third object of the present invention is a zipper including the above tooth.

[0007] To achieve the above first object, the present invention provides the following technical solution:

[0008] A tooth includes an engaging portion and a fixing portion. The fixing portion has a tape slot for clamping on the edge of the tape. The central plane of the engaging portion in the tooth thickness direction and the central plane of the tape slot in the slot width direction form an angle less than 180 degrees and greater than 90 degrees.

[0009] In this tooth of the zipper chain, during use, the teeth of the zipper chain are evenly arranged on two strips of cloth. According to the angle between the two sides of the closing opening and the angle between the central plane of the engaging part in the tooth thickness direction and the central plane of the belt card slot in the slot width direction, the corresponding tooth of the zipper chain is selected. For example, if the angle between the two sides of the closing opening is 90 degrees, then correspondingly, the tooth of the zipper chain that can be selected is the one where the angle between the central plane of the engaging part in the tooth thickness direction and the central plane of the belt card slot in the slot width direction is 135 degrees. In this tooth of the zipper chain, by changing the angle between the central plane of the engaging part of the tooth of the zipper chain in the tooth thickness direction and the central plane of the belt card slot in the slot width direction, the angle between the two strips of cloth engaged can be changed, thereby meeting the use requirements of the closing opening where the angle between the two sides is not a flat angle, and the use method is simple and convenient. To sum up, this tooth of the zipper chain can effectively solve the problem that it is inconvenient to use a zipper for a non-planar closing opening.

[0010] Preferably, the cross-section of the bottom of the belt card slot is circular to wrap around the rib part at the edge of the strip of cloth, and the center of the circle at the bottom of the slot is on the central plane of the engaging part in the tooth thickness direction.

[0011] Preferably, the cross-section of the engaging part in the tooth thickness direction is in a convex shape so that one side groove can accommodate half of the protrusion in front.

[0012] Preferably, on the side opposite to the deflection direction of the belt card slot, the side surface of the fixing part is an arc surface and smoothly transitions with the engaging part.

[0013] Preferably, the front end surface of the engaging part has an engaging groove with the slot width direction being the tooth thickness direction, and the root of the protrusion of the engaging part has an engaging protrusion that matches the size of the engaging groove.

[0014] Preferably, on the side with the same deflection direction as the belt card slot, the height by which the fixing part protrudes compared to the engaging part is not greater than one-fifth of the thickness of the engaging part.

[0015] Preferably, the slot opening of the belt card slot is on one side of the central plane of the engaging part in the tooth thickness direction, and the fixing part forms an arc-shaped protruding part that protrudes away from the engaging part at the central plane of the engaging part in the tooth thickness direction.

[0016] To achieve the above second objective, the present invention also provides a zipper chain belt. This zipper chain belt includes any one of the above teeth of the zipper chain and also includes strips of cloth. The belt card slot of the tooth of the zipper chain is stuck on the rib part on one side of the strip of cloth. Since the above tooth of the zipper chain has the above technical effects, the zipper chain belt with this tooth of the zipper chain should also have corresponding technical effects.

[0017] To achieve the second above-mentioned objective, the present invention further provides a zipper, which includes any one of the above-mentioned teeth, and further includes a slider. The cavity on both sides of the slider is matched with the teeth, and when the cavity on one side wraps around the teeth, the slotted belt on the slider is aligned with the slotted card on the teeth. Since the above-mentioned teeth have the above-mentioned technical effects, the zipper with such teeth should also have corresponding technical effects.

[0018] Preferably, the slider includes an outer cover plate, an inner cover plate and a columnar movement. Both ends of the movement are respectively connected to the middle of the wide end of the outer cover plate and the middle of the wide end of the inner cover plate. Both sides of the outer cover plate bend inward to the inner cover plate to form an arc-shaped panel type. The inner cover plate is in a flat plate type, and on the inner side, both sides and the middle bulge toward the outer cover plate to form a limiting groove for limiting the teeth on both sides of the movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Schematic structural diagram of the teeth provided by the embodiment of the present invention;

[0021] Figure 2 Schematic structural diagram of the meshing of multiple teeth provided by the embodiment of the present invention;

[0022] Figure 3 Schematic structural diagram of the teeth at an angle of 135 degrees provided by the embodiment of the present invention;

[0023] Figure 4 Schematic structural diagram of the teeth at an angle of 150 degrees provided by the embodiment of the present invention;

[0024] Figure 5 Schematic structural diagram of the meshing of two chain tapes provided by the embodiment of the present invention;

[0025] Figure 6 Schematic structural diagram of a convex zipper provided by the embodiment of the present invention;

[0026] Figure 7 Schematic structural diagram of a concave zipper provided by the embodiment of the present invention;

[0027] Figure 8 Schematic structural diagram of the slider provided by the embodiment of the present invention;

[0028] Figure 9Exploded structural schematic diagram of the slider provided by the embodiment of the present invention;

[0029] Figure 10 Bottom view structural schematic diagram of the slider body provided by the embodiment of the present invention;

[0030] Figure 11 Top view structural schematic diagram of the slider body provided by the embodiment of the present invention.

[0031] The markings in the drawings are as follows:

[0032] Chain teeth 1, cloth tape 2, slider 3;

[0033] Engaging portion 11, fixing portion 12, belt slot 13, engaging groove 14, engaging protrusion 15, arc-shaped protrusion portion 16;

[0034] Outer cover plate 31, inner cover plate 32, movement 33, pull tab 34, cap 35, hook 36. Detailed implementation manners

[0035] The embodiment of the present invention discloses a kind of chain teeth to effectively solve the problem that it is inconvenient to use a zipper for a non-planar closed opening.

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Please refer to Figures 1 - 11 , Figure 1 Structural schematic diagram of the chain teeth provided by the embodiment of the present invention; Figure 2 Structural schematic diagram of multiple chain teeth when engaged provided by the embodiment of the present invention; Figure 3 Structural schematic diagram of the chain teeth at an included angle of 135 degrees provided by the embodiment of the present invention; Figure 4 Structural schematic diagram of the chain teeth at an included angle of 150 degrees provided by the embodiment of the present invention; Figure 5 Structural schematic diagram of two chain tapes when engaged provided by the embodiment of the present invention; Figure 6 Structural schematic diagram of a kind of outwardly convex zipper provided by the embodiment of the present invention; Figure 7 Structural schematic diagram of a kind of outwardly concave zipper provided by the embodiment of the present invention; Figure 8 Structural schematic diagram of the slider provided by the embodiment of the present invention; Figure 9 Exploded structural schematic diagram of the slider provided by the embodiment of the present invention; Figure 10 Bottom view structural schematic diagram of the slider body provided by the embodiment of the present invention; Figure 11Schematic top view structure diagram of the slider body provided by the embodiment of the present invention.

[0038] In a specific embodiment, the present embodiment provides a tooth 1, specifically, the tooth 1 includes an engaging portion 11 and a fixing portion 12.

[0039] Among them, the engaging portion 11 is in the shape of a tooth, so that the engaging portions 11 of two teeth 1 can be directly engaged together. For the specific tooth structure of the engaging portion 11, reference can be made to the prior art. Generally, the cross-section of the engaging portion 11 in the tooth thickness direction is generally Ω-shaped, that is, the front end of the engaging portion 11 in the engaging direction is a convex head portion in an arc shape, and the rear end is a neck portion in a contracted shape. When the two engaging portions 11 are engaged in the front-rear direction, the convex head portion of one engaging portion 11 on one side of the tape 2 is squeezed into the convex head portions of the two engaging portions 11 on the other side of the tape 2 to be stuck between the necks of the two engaging portions 11 to form an engaged state. Specifically, the cross-section of the engaging portion 11 in the tooth thickness direction can be made into a convex shape, so that one side groove can accommodate half of the front convexity, thereby ensuring that between adjacent two teeth, at the groove formed at the neck after the convexity, a cavity capable of accommodating the front convex portion is formed.

[0040] Among them, the fixing portion 12 is used to fix the tape 2, mainly having a tape slot 13, and the tape slot 13 extends along the extending direction of the tape 2 to be stuck on the tape 2 through the tape slot 13 to transmit the acting force between the tape 2 in the extending direction of the tape 2, that is, to transmit the acting force in the opening and closing direction of the zipper. The bottom of the tape slot 13 is generally an enlarged groove portion in a circular or square shape to accommodate the rib portion on one side of the tape 2, and the mouth of the tape slot 13 is in a constricted shape, and the slot width is generally adapted to the thickness of the tape surface of the tape 2, so that the tape surface portion of the tape 2 passes through the constricted-shaped slot mouth to be connected to the rib portion in the bottom of the slot, and the constricted-shaped slot mouth prevents the rib portion of the tape 2 from moving out of the tape slot 13 along the mouth direction of the tape slot 13. Among them, the engaging portion 11 and the fixing portion 12 are generally integrally formed, and of course, they can also be connected by fixed connection methods such as bonding and welding.

[0041] Among them, the included angle between the central plane of the engaging portion 11 in the tooth thickness direction and the central plane of the tape slot 13 in the slot width direction is less than 180 degrees and greater than 90 degrees, so that the tapes 2 of the two engaged tooth strips during engagement are arranged at an included angle, and the included angle is greater than 0 degrees and less than 180 degrees. Among them, the tooth thickness direction of the engaging portion 11 is the direction perpendicular to both the extending direction of the tape 2 and the engaging direction. Among them, the central plane of the tape slot 13 in the slot width direction is the tape thickness direction. It should be noted that during use, both the tooth thickness direction and the slot width direction of the tape slot 13 are the inner and outer directions of the closed mouth enclosed by the tooth strip. For flat teeth, the included angle between the central plane of the engaging portion 11 in the tooth thickness direction and the central plane of the tape slot 13 in the slot width direction is equal to 180 degrees.

[0042] In this chain tooth, during use, the chain teeth are evenly arranged on two cloth tapes 2. According to the angle between the two sides of the closed opening, and according to the angle between the central plane of the engaging portion 11 in the tooth thickness direction and the central plane of the tape slot 13 in the slot width direction, the corresponding chain tooth 1 is selected. For example, if the angle between the two sides of the closed opening is 90 degrees, then correspondingly, the chain tooth 1 that can be selected is such that the angle between the central plane of the engaging portion 11 in the tooth thickness direction and the central plane of the tape slot 13 in the slot width direction is 135 degrees. In this chain tooth 1, by changing the angle between the central plane of the engaging portion 11 of the chain tooth 1 in the tooth thickness direction and the central plane of the tape slot 13 in the slot width direction, the angle between the two engaged chain tapes can be changed, thereby meeting the use requirements of a closed opening with non-flat sides of the opening, and the use method is simple and convenient. To sum up, this chain tooth 1 can effectively solve the problem that it is inconvenient to use a zipper for a non-planar closed opening.

[0043] During use, specifically, for another example, if the angle between the two sides of the closed opening is 60 degrees, that is, the angle between the two cloth tapes 2 on both sides of the zipper is 60 degrees, then correspondingly, the chain tooth 1 that can be selected is such that the angle between the central plane of the engaging portion 11 in the tooth thickness direction and the central plane of the tape slot 13 in the slot width direction is 120 degrees.

[0044] Specifically, for another example, if the angle between the two sides of the closed opening is 120 degrees, that is, the angle between the two cloth tapes 2 on both sides of the zipper is 120 degrees, then correspondingly, the chain tooth 1 that can be selected is such that the angle between the central plane of the engaging portion 11 in the tooth thickness direction and the central plane of the tape slot 13 in the slot width direction is 150 degrees.

[0045] Specifically, here it is preferably that the angle between the central plane of the engaging portion 11 in the tooth thickness direction and the central plane of the tape slot 13 in the slot width direction is between 135 degrees and 150 degrees, including 135 degrees and 150 degrees, so that the angle between the two cloth tapes 2 is between 90 degrees and 120 degrees.

[0046] Furthermore, for the convenience of installing the chain tooth 1 on the cloth tape 2 to ensure that the chain teeth 1 with different central plane angles can all adapt to the corresponding cloth tape 2, here it is preferably that the bottom of the tape slot 13 has a cross-section in the shape of a circle to wrap around the cloth tape rib at the edge of the cloth tape 2, and the center of the circle at the bottom of the slot is preferably on the central plane of the engaging portion 11 in the tooth thickness direction. And the mouth of the tape slot 13 is preferably rectangular, so that the two sides of the mouth of the slot in the slot width direction closely fit the two side surfaces of the cloth tape 2 to ensure a tight connection effect.

[0047] Further, in order to facilitate the slider 3 to apply a pushing force to the teeth 1 to push the teeth 1 on the two side tapes 2 to engage, generally, the side of the fixing part 12 away from the engaging part 11 can abut against the inner wall of the slider 3 to transmit the acting force in the engaging direction. Further, in order to avoid inconvenience caused by external irregularities, based on this, the side opposite to the deflection direction of the tape slot 13 is preferably selected here, and the side surface of the fixing part 12 is an arc surface and is smoothly transitioned with the engaging part 11, so as to abut against the inner wall of the slider 3 through the arc surface to transmit the acting force in the engaging direction.

[0048] Further, in order to make the engaging part 11 engage better and avoid the two side teeth 1 disengaging in the tooth thickness direction, preferably, the front end surface of the engaging part 11 has an engaging groove 14 with the groove width direction being the tooth thickness direction, and the root of the protrusion of the engaging part 11 has an engaging protrusion 15 matching the size of the engaging groove 14. When the protrusion on the engaging part 11 of the teeth 1 on one side tape 2 is inserted into the slot between the two teeth 1 on the other side tape 2, at this time, the engaging groove 14 and the engaging protrusion 15 are engaged and matched to prevent the engaging groove 14 and the engaging protrusion 15 from disengaging from each other in the groove width direction of the engaging groove 14, that is, in the tooth thickness direction, and further prevent the mutually engaged teeth 1 from disengaging in the tooth thickness direction.

[0049] Further, on the side with the same deflection direction as the tape slot 13, the height by which the fixing part 12 protrudes compared to the engaging part 11 is not greater than one-fifth of the thickness of the engaging part 11. To ensure the overall flattening of the teeth 1, and further facilitate the slider 3 to apply the acting force in the engaging direction to the teeth 1. In order to better flatten the fixing part 12, it is necessary to keep the slot opening of the tape slot 13 on the side of the fixing part 12 away from the engaging part 11 to avoid arranging too much of the slot opening part on the side of the fixing part 12 with the same deflection direction as the tape slot 13.

[0050] Further, in order to better transmit the acting force between the slider 3 and the teeth 1, preferably, the slot opening of the tape slot 13 is located on one side of the central plane of the engaging part 11 in the tooth thickness direction, that is, both side slot walls of the tape slot 13 are located on one side of the central plane of the engaging part 11 in the tooth thickness direction. And at the central plane of the engaging part 11 in the tooth thickness direction, the fixing part 12 forms an arc-shaped protruding part 16 protruding in the direction away from the engaging part 11, and the slider 3 has an arc-shaped groove part matching the arc-shaped protruding part 16, so as to be matched through the arc-shaped groove part and the arc-shaped protruding part 16 to have a high limiting effect in the tooth thickness direction.

[0051] Based on the chain tooth 1 provided in the above embodiments, the present invention further provides a chain belt, which includes any one of the chain teeth 1 in the above embodiments, and further includes a cloth belt 2, wherein the belt slot 13 of the chain tooth 1 is stuck on the rib portion on one side of the cloth belt 2. Since this chain belt adopts the chain tooth 1 in the above embodiments, the beneficial effects of this chain belt can be referred to the above embodiments.

[0052] Based on the chain tooth 1 provided in the above embodiments, the present invention further provides a chain belt, which includes any one of the chain teeth in the above embodiments, and further includes a pull head 3. The cavity on both sides of the pull head 3 is matched with the chain tooth 1, and when the cavity on one side wraps around the chain tooth 1, the belt slot on the pull head 3 is aligned with the belt slot 13 of the chain tooth 1. Since this chain belt adopts the chain tooth in the above embodiments, the beneficial effects of this chain belt can be referred to the above embodiments.

[0053] Specifically, the pull head 3 includes an outer cover plate 31, an inner cover plate 32 and a columnar movement 33. The two ends of the movement 33 are respectively connected to the middle of the wide end of the outer cover plate 31 and the middle of the wide end of the inner cover plate 32 for separating and guiding two chain belts. Generally, the cross-section is triangular, and one of the sharp corners faces the middle of the narrow end. Both sides of the outer cover plate 31 bend inward to the inner cover plate 32 to form an arc-shaped panel, that is, the outer cover plate 31 covers the side of the chain tooth 1 opposite to the deflection direction of the belt slot 13, while the inner cover plate 32 covers the side of the chain tooth 1 with the same deflection direction as the belt slot. The inner cover plate 32 is flat, and on the inner side, both sides and the middle bulge toward the outer cover plate 31 to form limiting grooves for limiting the chain tooth 1 on both sides of the movement 33. The limiting grooves preferably extend from the wide end to the narrow end. The two chain belts separate at the wide end of the pull head 3 and close at the narrow end. Correspondingly, the middle of the outer cover plate 31 is also preferably convexly arranged toward the inner cover plate 32 to form corresponding grooves on both sides of the movement 33.

[0054] Generally, a cap 35, a spring piece, a hook 36 and a pull tab 34 are also arranged on the pull head to form a self-locking pull head. For a non-self-locking pull head, generally only the cap 35 and the pull tab 34 are included. Of course, the pull tab 34 and the cap 35 can also be not provided.

[0055] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other.

[0056] The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A chain tooth includes an engaging portion and a fixing portion. The fixing portion has a belt slot for clamping on the edge of a cloth belt, and is characterized in that The central plane of the meshing part in the tooth thickness direction and the central plane of the belt slot in the slot width direction form an angle less than 180 degrees and greater than 90 degrees, so that the cloth belts of the two meshing chain teeth during meshing are arranged at an angle, corresponding to the angle between the two side edges of the closing opening; the slot opening of the belt slot is on the side of the fixing part away from the meshing part.

2. The tooth according to claim 1, wherein The cross-section of the bottom of the belt slot is circular to wrap around the rib part at the edge of the cloth belt, and the center of the circle at the bottom of the slot is on the central plane of the meshing part in the tooth thickness direction.

3. The tooth according to claim 2, wherein The cross-section of the meshing part in the tooth thickness direction is in a convex shape, so that one side groove can accommodate half of the protruding part in front.

4. The tooth according to claim 3, characterized in that, On the side opposite to the deflection direction of the belt slot, the side surface of the fixing part is an arc surface and is smoothly transitioned with the meshing part.

5. The tooth according to claim 4, characterized in that, The front end surface of the meshing part has a meshing groove with the slot width direction being the tooth thickness direction, and the root of the protruding part of the meshing part has a meshing protrusion that matches the size of the meshing groove.

6. The tooth according to claim 5, characterized in that, On the side with the same deflection direction as the belt slot, the height by which the fixing part protrudes compared to the meshing part is not greater than one-fifth of the thickness of the meshing part.

7. The tooth according to claim 6, wherein The slot opening of the belt slot is on one side of the central plane of the meshing part in the tooth thickness direction, and the fixing part forms an arc-shaped protruding part that protrudes away from the meshing part at the central plane of the meshing part in the tooth thickness direction.

8. A chain belt, comprising a cloth belt, characterized in that, It further includes a chain tooth as described in any one of claims 1-7, and the belt slot of the chain tooth is stuck on the rib part on one side of the cloth belt.

9. A zipper, comprising a slider, characterized in that, It includes a chain tooth as described in any one of claims 1-7. The cavity on both sides of the slider is matched with the chain tooth, and when the cavity on one side wraps around the chain tooth, the belt slot on the slider is aligned with the belt slot of the chain tooth.

10. The zipper according to claim 9, characterized in that, The slider includes an outer cover plate, an inner cover plate, and a column-shaped movement. Both ends of the movement are respectively connected to the middle parts of the wide ends of the outer cover plate and the inner cover plate. Both sides of the outer cover plate bend inward to the inner cover plate to form an arc-shaped plate type. The inner cover plate is in a flat plate type, and on the inner side, both sides and the middle part bulge toward the outer cover plate to form limiting grooves for limiting the chain tooth on both sides of the movement.

Images