CN112205812A - Pull strap for inflatable product, manufacturing method thereof, inflatable product and manufacturing method thereof - Google Patents

Abstract

The invention discloses a drawstring of an inflatable product and the inflatable product, the drawstring comprises a base part and a plurality of protruding parts, the base part and the plurality of protruding parts are integrally arranged, and at least one part of the plurality of protruding parts extend forwards from the same side of the base part in a spacing mode. The inflatable product includes an inflation chamber including a first inflation chamber wall, a second inflation chamber wall, and at least one inner chamber pull strap including a pull strap having a base and a plurality of protrusions. The invention also discloses a manufacturing method of the inflatable product and a manufacturing method of the drawstring, because the drawstring is obtained by cutting, the drawstring material can be effectively utilized in the manufacturing process, and the manufacturing method of the drawstring also comprises the step of combining the obtained drawstring into a straight drawstring or a Y-shaped drawstring.

Description

Pull strap for inflatable product, manufacturing method thereof, inflatable product and manufacturing method thereof

Technical Field

The invention relates to a drawstring of an inflatable product and a manufacturing method thereof, and also relates to an inflatable product and a manufacturing method thereof.

Background

The inflatable products are widely applied to outdoor articles, aquatic articles or household products, such as inflatable pools, inflatable floating rafts, inflatable mattresses and the like, due to the characteristics of light weight, easy storage and portability.

In inflatable products, pull straps are typically used to connect the walls of the inflatable product walls so that the inflatable product forms a predetermined shape after inflation. As shown in FIG. 1, the drawstring 111 in prior inflatable products is generally in the form of a full sheet, with one side of the drawstring 111 attached to the upper inflatable chamber wall of the mattress and the other side of the drawstring 111 attached to the lower inflatable chamber wall of the mattress. After the mattress is inflated, the pulling force of the drawstrings on the walls of the upper and lower inflatable chambers of the mattress makes the whole inflatable chamber form the shape of the mattress. This process is typically very costly in terms of drawstring material. In order to save the drawstring material or form a certain fixed pattern, as shown in fig. 2, a plurality of holes are sometimes dug in the middle of the drawstring 112, but the dug excess material is difficult to recycle, which causes resource waste and increases the manufacturing cost.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a drawstring of an inflatable product and a manufacturing method thereof, and also provides the inflatable product and the manufacturing method thereof.

According to one aspect of the present invention, there is provided a pull strap for an inflatable product, comprising a base and a plurality of tabs, the base and the plurality of tabs being integrally disposed, at least a portion of the plurality of tabs extending forwardly from a same side of the base in a spaced apart manner.

According to an alternative embodiment of the invention, the plurality of projections are evenly spaced, with a groove being formed between adjacent projections.

According to an alternative embodiment of the invention, the plurality of projections have the same shape.

According to an alternative embodiment of the present invention, the protrusion comprises one end close to the base and the other end far from the base, and the width of the protrusion in the direction from the one end close to the base to the other end far from the base is tapered, divergent, tapered and then convergent, or constant.

According to an alternative embodiment of the invention, the protrusion is rectangular, square, trapezoidal, wavy, trapezoidal with concave sides, trapezoidal with convex sides or rectangular with concave sides.

According to a further aspect of the present invention there is provided an inflatable product comprising an inflation chamber, the inflation chamber comprising: the inflatable device comprises a first inflatable cavity wall and a second inflatable cavity wall, wherein the second inflatable cavity wall is arranged opposite to the first inflatable cavity wall; the inflatable cavity further comprises at least one inner cavity drawstring, the inner cavity drawstring is the drawstring of the inflatable product, the inner cavity drawstring comprises a base and a plurality of protruding parts, the base of the inner cavity drawstring is connected with the first inflatable cavity wall, and the plurality of protruding parts of the inner cavity drawstring are connected with the second inflatable cavity wall.

According to a further aspect of the present invention there is provided an inflatable product comprising an inflation chamber, the inflation chamber comprising: the inflatable device comprises a first inflatable cavity wall and a second inflatable cavity wall, wherein the second inflatable cavity wall is arranged opposite to the first inflatable cavity wall; the inflatable cavity further comprises at least one connecting belt and at least one inner cavity pulling belt, the inner cavity pulling belt is the same as the above, the pulling belt of the inflatable product comprises a base and a plurality of protruding portions, the base of the inner cavity pulling belt is connected with the first inflatable cavity wall, the plurality of protruding portions of the inner cavity pulling belt are connected with the connecting belt, and the connecting belt is connected with the second inflatable cavity wall.

According to a further aspect of the present invention there is provided an inflatable product comprising an inflation chamber, the inflation chamber comprising: the inflatable device comprises a first inflatable cavity wall and a second inflatable cavity wall, wherein the second inflatable cavity wall is arranged opposite to the first inflatable cavity wall; the inflatable chamber further comprises at least one inner chamber drawstring, the inner chamber drawstring comprises a first drawstring component and a second drawstring component, the first drawstring component and the second drawstring component are the same, the drawstring of the inflatable product is provided with a base and a plurality of protrusions, the plurality of protrusions of the first drawstring component and the plurality of protrusions of the second drawstring component are sequentially connected, the base of the first drawstring component is connected with the first inflatable chamber wall, and the base of the second drawstring component is connected with the second inflatable chamber wall.

According to a further aspect of the present invention there is provided an inflatable product comprising an inflation chamber, the inflation chamber comprising: the inflatable device comprises a first inflatable cavity wall and a second inflatable cavity wall, wherein the second inflatable cavity wall is arranged opposite to the first inflatable cavity wall; the inflatable cavity further comprises at least one inner cavity drawstring, the inner cavity drawstring comprises a first drawstring component, a second drawstring component and a third drawstring component, the first drawstring component, the second drawstring component and the third drawstring component are the same as the previous drawstrings of the inflatable product, the first drawstring component, the second drawstring component and the third drawstring component respectively comprise a base part and a plurality of protruding parts, the base part and the protruding parts are integrally arranged and form a preset height, the protruding parts of the first drawstring component, the second drawstring component and the third drawstring component are mutually and sequentially connected, the base part of the first drawstring component is connected with the first inflatable cavity wall, and the base part of the second drawstring component and the base part of the third drawstring component are connected with the second inflatable cavity wall.

In accordance with an alternative embodiment of the present invention, the preset height of the first draw tape assembly is greater than the preset heights of the second and third draw tape assemblies.

According to an alternative embodiment of the invention, the base is entirely connected to the first or second inflatable chamber wall. The base comprises a base of the inner cavity drawtape, a base of a first drawtape component and a base of a second drawtape component which are contained in the inner cavity drawtape, and a base of a first drawtape component, a second drawtape component and a base of a third drawtape component which are contained in the inner cavity drawtape.

According to an alternative embodiment of the invention, the base is partially connected to the first or second inflatable chamber wall. The base comprises a base of the inner cavity drawtape, a base of a first drawtape component and a base of a second drawtape component which are contained in the inner cavity drawtape, and a base of a first drawtape component, a second drawtape component and a base of a third drawtape component which are contained in the inner cavity drawtape.

According to an alternative embodiment of the invention, the connecting strip is connected, in whole or in part, to the second inflatable chamber wall.

According to an alternative embodiment of the invention, the connection between the inner cavity pull tape and the first and/or second inflatable cavity wall and/or between the plurality of protrusions of the inner cavity pull tape is a weld or bond.

According to an alternative embodiment of the invention, the inflatable product is an inflatable mattress, an inflatable pool or an inflatable aquatic product.

According to still another aspect of the present invention, there is provided a method of manufacturing an inflatable product, comprising:

step 1: providing a whole piece of drawstring material;

step 2: subjecting the unitary sheet of draw tape material to multiple die cuts, wherein each die cut forms at least two draw tapes, wherein each draw tape each includes a base and a plurality of tabs, at least a portion of the plurality of tabs extending forward from the same side of the base in a spaced apart manner;

and step 3: the base of each pull strap is attached to a first plenum wall of the inflatable product, and the ends of the plurality of tabs of each pull strap distal from the base are attached to a second plenum wall of the inflatable product.

According to still another aspect of the present invention, there is provided a method of manufacturing an inflatable product, comprising:

step 1: providing a whole piece of drawstring material;

step 2: subjecting the unitary sheet of draw tape material to multiple die cuts, wherein each die cut forms at least two draw tapes, wherein each draw tape each includes a base and a plurality of tabs, at least a portion of the plurality of tabs extending forward from the same side of the base in a spaced apart manner;

and step 3: providing a connecting strap, connecting the connecting strap with the end of the plurality of protrusions of each of the pull straps;

and 4, step 4: the base of each pull strap is attached to a first inflatable chamber wall of the inflatable product and the attachment strap is attached to a second inflatable chamber wall of the inflatable product.

According to still another aspect of the present invention, there is provided a method of manufacturing an inflatable product, comprising:

step 1: providing a whole piece of drawstring material;

step 2: processing the unitary sheet of draw tape material to form at least two draw tapes, wherein each draw tape includes a base and a plurality of tabs, at least a portion of the plurality of tabs extending forwardly from the same side of the base in a spaced apart manner;

and step 3: selecting two drawstrings obtained in the step, and connecting the end part of the protruding part of one drawstring, which is far away from the base, with the end part of the protruding part of the other drawstring, which is far away from the base, so as to obtain a complete drawstring;

and 4, step 4: one base of the complete pull tape is connected with a first inflation cavity wall of the inflatable product, and the other base of the complete pull tape is connected with a second inflation cavity wall of the inflatable product.

According to an alternative embodiment of the invention, the processing of the sheet of draw tape material comprises: die cutting or hot cutting.

According to still another aspect of the present invention, there is provided a method of manufacturing an inflatable product, comprising:

step 1: providing a whole piece of drawstring material;

step 2: subjecting the unitary sheet of draw tape material to multiple die cuts, wherein each die cut forms at least two draw tapes, wherein each draw tape each includes a base and a plurality of tabs, at least a portion of the plurality of tabs extending forward from the same side of the base in a spaced apart manner;

and step 3: selecting the three drawstrings obtained in the step, namely a first drawstring, a second drawstring and a third drawstring respectively, and connecting the end part of the protruding part of the first drawstring, which is far away from the base part, with the end part of the protruding part of the second drawstring, which is far away from the base part, and the end part of the protruding part of the third drawstring, which is far away from the base part;

and 4, step 4: and connecting the base of the first pull tape with the first inflatable cavity wall of the inflatable product, and connecting the base of the second pull tape and the base of the third pull tape with the second inflatable cavity wall of the inflatable product.

It will be appreciated by those skilled in the art that the foregoing methods of making the inflatable products include methods of making drawstrings for the inflatable products. Thus, according to yet another aspect of the present invention, a method of making a pull tape for an inflatable product is provided.

According to the drawstring disclosed by the technical scheme, the drawstring is manufactured in a mode of opposite cutting, and a piece of material with the size of the traditional drawstring can be cut into two drawstrings and used as the two drawstrings, so that the material cost of the drawstring is saved. The drawstring has the advantages of light weight and low cost on the basis of meeting the constraint of the drawstring on the inflatable product. And the drawstrings after punching and cutting can be combined and connected with each other or with the connecting bands, thereby providing various types of drawstrings.

Drawings

Other features and advantages of the present invention will be better understood by the following detailed description of the preferred embodiments when considered in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the figures thereof, and wherein:

FIG. 1 is a schematic representation of a prior art straight pull belt;

FIG. 2 is a schematic view of a variation of a prior art straight pull belt;

FIG. 3 is a schematic view of a pull strap of an inflatable product according to an embodiment of the present invention;

4a-4b are schematic illustrations of an inflatable product according to an embodiment of the invention;

FIGS. 5a-5b are schematic illustrations of another aerated product according to embodiments of the invention;

FIGS. 6a, 6c are schematic views of a further inflatable product according to an embodiment of the invention, FIG. 6b being an enlarged view of a portion of FIG. 6 a;

FIG. 7a is a schematic view of yet another inflatable product according to an embodiment of the invention, and FIG. 7b is an enlarged view of a portion of FIG. 7 a;

FIG. 8 is a schematic view of a drawstring applied to an inflatable product in accordance with an embodiment of the present invention;

FIGS. 9a-9d are schematic views of drawstrings obtained in accordance with embodiments of the present invention;

FIGS. 10a-10d are schematic illustrations of a method of manufacturing an inflatable product according to an embodiment of the invention;

FIGS. 11a-11d are schematic views of drawstrings obtained in accordance with embodiments of the present invention;

fig. 12 is a schematic view of the use of the draw tape obtained according to an embodiment of the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In this specification, the terms "first", "second" and "third" are not used to limit the order and number of components unless otherwise specified.

In an exemplary embodiment, as shown in FIG. 3, the draw tape 1 includes a base 11 and a plurality of protrusions 12, wherein the base 11 and the plurality of protrusions 12 are integrally provided, and at least a portion of the plurality of protrusions 12 extend forward from the same side of the base 11 in a spaced-apart manner.

As shown in fig. 3, the plurality of protrusions 12 are uniformly spaced, a groove is formed between adjacent protrusions 12, and the plurality of protrusions 12 have the same shape. Alternatively, in some embodiments, the plurality of projections 12 are shaped differently and may be spaced non-uniformly.

In the present exemplary embodiment, the protruding portion 12 is a rectangle with concave sides, the protruding portion 12 includes one end close to the base portion 11 and the other end far from the base portion 11, optionally, the protruding portion 12 has other shapes, the width of the protruding portion 12 in the direction from the one end close to the base portion 11 to the other end far from the base portion 11 is gradually reduced, gradually expanded, gradually contracted again, gradually expanded again or unchanged, as shown in fig. 9c and 11b are gradually reduced trapezoids, fig. 9d are gradually reduced wave-shaped, fig. 9a is a rectangle with concave sides which is gradually reduced and gradually expanded, fig. 11a is a trapezoid with concave sides which is gradually reduced, fig. 11c is a trapezoid with convex sides which is gradually expanded again, and fig. 9b and 11d are unchanged rectangles.

Figures 4a-4b are schematic views of an inflatable product according to an embodiment of the invention. As shown in FIGS. 4a-4b, first inflatable mattress 2 includes an inflatable chamber including a first upper inflatable chamber wall 21 and a first lower inflatable chamber wall 22 disposed opposite one another, and a plurality of inner pull straps 23, the inner pull straps 23 including a base 231 and a plurality of protrusions 232, the base 231 and the plurality of protrusions 232 being integrally disposed, at least a portion of the plurality of protrusions 232 extending forwardly from the same side of the base 231 in a spaced apart manner, wherein the base 231 of the inner pull strap 23 is attached to the first upper inflatable chamber wall 21 and the ends of the plurality of protrusions 232 of the inner pull strap 23 are attached to the first lower inflatable chamber wall 22. As shown in FIG. 4a, the base 231 of the inner cavity pull strap 23 is fully attached to the first upper inflation cavity wall 21, while in FIG. 4b, the base 231 of the inner cavity pull strap 23 is partially attached to the first upper inflation cavity wall 21, and the attachment in FIG. 4a differs from that in FIG. 4b, to create a different appearance of the inflatable mattress in the inflated condition.

Figures 5a-5b are schematic views of another inflatable product according to an embodiment of the invention. As shown in FIGS. 5a-5b, the inflatable pool 3 comprises an inflatable chamber comprising an outer inflatable chamber wall 31 and an inner inflatable chamber wall 32 disposed opposite one another, and at least one inner pull strap 33, wherein the inner pull strap 33 comprises a base portion 331 and a plurality of protrusions 332, the base portion 331 and the plurality of protrusions 332 are integrally disposed, and at least a portion of the plurality of protrusions 332 extend forward from the same side of the base portion 331 in a spaced-apart manner, wherein the base portion 331 of the inner pull strap 33 is attached to the outer inflatable chamber wall 31 and the ends of the plurality of protrusions 332 of the inner pull strap 33 are attached to the inner inflatable chamber wall 32. As shown in FIG. 5a, the base 331 of the lumen pull tape 33 is fully attached to the outer inflation chamber wall 31, while in FIG. 5b, the base 331 of the lumen pull tape 33 is partially attached to the outer inflation chamber wall 31. The two different connection modes can generate different appearances of the inflatable pool in an inflated state.

FIGS. 6a and 6c are schematic views of a further inflatable product according to an embodiment of the invention, and FIG. 6b is an enlarged view of a portion of FIG. 6 a. As shown in FIGS. 6a-6b, the second inflatable mattress 4 includes an inflatable chamber including a second upper inflatable chamber wall 41 and a second lower inflatable chamber wall 42 disposed opposite one another, and at least one inner pull strap 43, the inner pull strap 43 including a base 431 and a plurality of protrusions 432, the base 431 and the plurality of protrusions 432 being integrally disposed, at least a portion of the plurality of protrusions 432 extending forwardly from the same side of the base 431 in a spaced-apart manner, wherein the base 431 of the inner pull strap 43 is attached to the second upper inflatable chamber wall 41, the ends of the plurality of protrusions 432 of the inner pull strap 43 are attached to a connecting strap 44, and the connecting strap 44 is attached to the second lower inflatable chamber wall 42. The connector strips 44 may be the same material as the lumen pull straps. It is understood that the attachment straps may be any material capable of fixedly attaching the lumen pull strip to the inflation lumen wall, such as PVC, TPR, EVA, or other composite material. As shown in FIGS. 6a-6b, the base 431 of the lumen pull tape 43 is fully attached to the second upper inflation chamber wall 41, while in FIG. 6c, the base 431 of the lumen pull tape 43 is partially attached to the second upper inflation chamber wall 41. Optionally, the connecting straps 44 are connected, in whole or in part, to the second lower plenum wall 42. In the present exemplary embodiment, the connecting strap 44 has a reinforcing function, and can facilitate the installation of a draw tape having one base and a plurality of protrusions.

FIG. 7a is a schematic view of yet another inflatable product according to an embodiment of the invention, and FIG. 7b is an enlarged view of a portion of FIG. 7 a. As shown in FIGS. 7a-7b, the third inflatable mattress 5 includes an inflatable chamber including an upper third inflatable chamber wall 51 and a lower third inflatable chamber wall 52 disposed in opposed relation, the inflatable chamber further including at least one inner cavity drawtape comprising a first drawtape assembly 53 and a second drawtape assembly 54, the first drawtape assembly 53 including a base 531 and a plurality of projections 532, the base 531 and the plurality of projections 532 being integrally disposed, at least a portion of the plurality of projections 532 extending forwardly from a same side of the base 531 in a spaced apart manner, the second drawtape assembly 54 including a base 541 and a plurality of projections 542, the base 541 and the plurality of projections 542 being integrally disposed, at least a portion of the plurality of projections 542 extending forwardly from the base 541 in a spaced apart manner, an end of the same side of the plurality of projections 532 of the first drawtape assembly 53 being sequentially connected to an end of the plurality of projections 542 of the second drawtape assembly 54, forming a complete draw tape. The base 531 of the first pull tape assembly 53 is attached to the third upper plenum wall 51 and the base 541 of the second pull tape assembly 54 is attached to the third lower plenum wall 52. As shown in FIGS. 7a-7b, the base 531 of the first pull tape assembly 53 is fully attached to the third upper plenum wall 51 and the base 541 of the second pull tape assembly 54 is fully attached to the third lower plenum wall 52. although not shown, the base 531 of the first pull tape assembly 53 may be partially attached to the third upper plenum wall 51 and the base 541 of the second pull tape assembly 54 may be partially attached to the third lower plenum wall 52. In the present exemplary embodiment, the tabs 532 of the first pull strap assembly 53 and the tabs 542 of the second pull strap assembly 54 are sequentially connected to form a pull strap with integral upper and lower edges, which provides a flat surface profile for the inflatable product in which the pull strap is used while making efficient use of the pull strap material. In this embodiment, the height of the tab of the draw tape is reduced because the draw tape assembly is about half the height of the integral draw tape. Thus, during the production of the production line, when the drawstring assembly moves, the situation that the protruding part of the drawstring causes product defects due to accidental folding or deformation is reduced.

FIG. 8 is a schematic view of a drawstring applied to an inflatable product in accordance with an embodiment of the present invention. As shown in FIG. 8, the inflatable product comprises an inflatable chamber comprising a first inflatable chamber wall 61 and a second inflatable chamber wall 62, wherein the second inflatable chamber wall 62 is disposed opposite the first inflatable chamber wall 61. The inflatable chamber further includes at least one inner cavity draw tape, the inner cavity draw tape including a first draw tape assembly 63, a second draw tape assembly 64, and a third draw tape assembly 65, the first draw tape assembly 63 including a base 631 and a plurality of projections 632, the base 631 and the plurality of projections 632 being integrally disposed and forming a predetermined height, at least a portion of the plurality of projections 632 extending forward from a same side of the base 631 in a spaced apart manner, the second draw tape assembly 64 including a base 641 and a plurality of projections 642, the base 641 and the plurality of projections 642 being integrally disposed and forming a predetermined height, at least a portion of the plurality of projections 642 extending forward from a same side of the base 641 in a spaced apart manner, the third draw tape assembly 65 including a base 651 and a plurality of projections 652, the base 651 and the plurality of projections 652 being integrally disposed and forming a predetermined height, at least a portion of the plurality of projections 652 extending forward from a same side of the base 651 in a spaced apart manner, the ends of the plurality of tabs 632 of the first draw tape assembly 63, the plurality of tabs 642 of the second draw tape assembly 64 and the plurality of tabs 652 of the third draw tape assembly 65 are connected in series with one another, with the base 631 of the first draw tape assembly 63 connecting the first inflatable chamber wall 61 and the base 641 of the second draw tape assembly 64 and the base 651 of the third draw tape assembly 65 connecting the second inflatable chamber wall 62. As shown in FIG. 8, the base 631 of the first draw tape assembly 63 is fully attached to the first inflatable chamber wall 61, the base 641 of the second draw tape assembly 64 and the base 651 of the third draw tape assembly 65 are fully attached to the second inflatable chamber wall 62, although not shown, the base 631 of the first draw tape assembly 63 may be partially attached to the first inflatable chamber wall 61, and the base 641 of the second draw tape assembly 64 and the base 651 of the third draw tape assembly 65 may be partially attached to the second inflatable chamber wall 62.

In the present exemplary embodiment, the preset height of the first pull belt assembly 63 is greater than the preset height of the second and third pull belt assemblies 63, 64. Alternatively, in some embodiments, the predetermined height of the first, second and third pull tape assemblies 63, 64, 65 may be set as desired, i.e., the combined and connected pull tapes of the first, second and third pull tape assemblies 63, 64, 65 may be adapted to different locations (e.g., center, corner, edge) of different inflatable products.

In the present exemplary embodiment, the first pull tape assembly 63, the second pull tape assembly 64 and the third pull tape assembly 65 are combined to form a Y-shaped pull tape.

In the above exemplary embodiments, the connection between the lumen pull tape and the inflatable chamber wall, and/or between the plurality of protrusions of the lumen pull tape is a weld or bond. Wherein welding is usually carried out as high-frequency welding.

In the above exemplary embodiments, several drawstring forms have been described, for example, in the form of mattresses, pools, it being understood that the embodiments of these drawstrings are equally applicable to other suitable inflatable products, such as inflatable aquatic products. The lumen pull tape in the above embodiments may consist of a single pull tape having a base and a plurality of protrusions, may consist of a pull tape having a base and a plurality of protrusions and a connector tape, may consist of two pull tapes having a base and a plurality of protrusions, or may consist of three pull tapes having a base and a plurality of protrusions. The tabs of the draw tape may be attached to the cavity wall or other draw tape at locations other than the ends, if desired. In addition, the inner cavity drawstring can be selected from different quantities of drawstrings with one base part and a plurality of protruding parts according to requirements. The inflatable product can also select different types of inner cavity pull belts according to the requirement.

According to another aspect of the present invention, there is provided a method of manufacturing an inflatable product, comprising a method of manufacturing a drawstring and attaching the manufactured drawstring to an inflatable product.

In an exemplary embodiment, as shown in fig. 10a, a method of manufacturing an inflatable product includes:

step S101: providing a whole piece of drawstring material;

step S102: stamping and cutting the whole sheet of drawstring material for multiple times, wherein each stamping and cutting forms at least two drawstrings, each drawstring comprises a base part and a plurality of protruding parts, and at least one part of the plurality of protruding parts extend forwards from the same side of the base part in a spacing mode;

step S103: the base of each pull strap is attached to a first plenum wall of the inflatable product, and the ends of the plurality of tabs of each pull strap distal from the base are attached to a second plenum wall of the inflatable product.

According to the above steps, optionally, as shown in FIGS. 9a-9d, a single sheet of draw tape material is die cut to form two identical draw tapes, the draw tape comprising a base and a plurality of tabs as shown in FIG. 3, at least a portion of the plurality of tabs extending forwardly from the same side of the base in a spaced apart manner. In which the shape of the tab of the draw tape shown in fig. 9a is the same as that of fig. 3, in addition to which the tab of the draw tape formed by press cutting may be rectangular as shown in fig. 9b, trapezoidal as shown in fig. 9c, wavy as shown in fig. 9d, alternatively the tab of the draw tape may be shaped as shown in fig. 11a-11 d.

In an exemplary embodiment, as shown in fig. 10b, a method of manufacturing an inflatable product includes:

step S201: providing a whole piece of drawstring material;

step S202: stamping and cutting the whole sheet of drawstring material for multiple times, wherein each stamping and cutting forms at least two drawstrings, each drawstring comprises a base part and a plurality of protruding parts, and at least one part of the plurality of protruding parts extend forwards from the same side of the base part in a spacing mode;

step S203: providing a connecting strap, connecting the connecting strap with the plurality of protrusions of each pull strap;

step S204: the base of each pull strap is attached to a first inflatable chamber wall of the inflatable product and the attachment strap is attached to a second inflatable chamber wall of the inflatable product.

In the present exemplary embodiment, the shape of the tab of the die-cut draw tape may be set as desired, including the shapes shown in fig. 9a-9d, 11a-11 d. Optionally, the connecting band is an elongated connecting band.

In the present exemplary embodiment, the draw tape obtained is shown in use in fig. 6a-6 c.

In an exemplary embodiment, as shown in fig. 10c, a method of manufacturing an inflatable product includes:

step S301: providing a whole piece of drawstring material;

step S302: processing the sheet of draw tape material to form at least two draw tapes, wherein each draw tape includes a base and a plurality of tabs, at least a portion of the plurality of tabs extending forwardly from the same side of the base in a spaced apart manner;

step S303: selecting two drawstrings obtained in the step, and connecting the end part of the protruding part of one drawstring, which is far away from the base, with the end part of the protruding part of the other drawstring, which is far away from the base, so as to obtain a complete drawstring;

step S304: one base of the integral pull strap is attached to a first inflatable chamber wall of the inflatable product and the other base of the integral pull strap is attached to a second inflatable chamber wall of the inflatable product.

As shown in FIGS. 11a-11d, a unitary sheet of draw tape material is processed to form two identical draw tapes, the draw tapes including a base and a plurality of tabs as shown in FIG. 3, at least a portion of the plurality of tabs extending forward from the same side of the base in a spaced apart manner. As can be seen in FIGS. 11a-11d, the protrusions of the draw tape may be shaped as a concave-sided trapezoid as shown in FIG. 11a, or a convex-sided trapezoid as shown in FIG. 11 c. In fig. 11a-11d, the die-cut draw tapes are joined in an offset manner such that the end of the tab of one draw tape remote from the base is joined to the end of the tab of the other draw tape remote from the base to form a draw tape with complete upper and lower edges, the resulting draw tape being shown in use in fig. 7a-7 b.

In the present exemplary embodiment, the manner of processing the entire sheet of draw tape material includes: die cutting or hot cutting.

In an exemplary embodiment, as shown in fig. 10d, a method of manufacturing an inflatable product comprises:

step S401: providing a whole piece of drawstring material;

step S402: stamping and cutting the whole sheet of drawstring material for multiple times, wherein each stamping and cutting forms at least two drawstrings, each drawstring comprises a base part and a plurality of protruding parts, and at least one part of the plurality of protruding parts extend forwards from the same side of the base part in a spacing mode;

step S403: selecting the three drawstrings obtained in the step, namely a first drawstring, a second drawstring and a third drawstring respectively, and connecting the end part of the protruding part of the first drawstring, which is far away from the base part, with the end part of the protruding part of the second drawstring, which is far away from the base part, and the end part of the protruding part of the third drawstring, which is far away from the base part;

step S404: the base of the first pull strap is attached to a first inflation chamber wall of the inflatable product, and the base of the second pull strap and the base of the third pull strap are attached to a second inflation chamber wall of the inflatable product.

In the present exemplary embodiment, three selected draw tapes may have different heights, and each three draw tapes are connected into one Y-shaped draw tape, and optionally, the height of the draw tape perpendicular to the inflatable chamber wall in the Y-shaped draw tape is greater than the height of the other draw tapes. Alternatively, the draw tape obtained is shown in fig. 8 when in use.

It will be understood by those skilled in the art that in all of the above described methods of making an inflatable product, a method of making a drawstring for an inflatable product is included. Also, in all of the above exemplary embodiments, in addition to the press cutting of the entire sheet of the draw tape material a plurality of times, the press cutting or the hot cutting may be performed by a hot cutting method, and preferably by a butt cutting method. Alternatively, a single piece of draw tape material may be die cut or hot cut on a flow line, the single piece of draw tape material being pre-formed into a sheet shape suitable for cutting or slitting at least a pair of draw tapes at one time.

In all of the above-described methods of manufacturing an inflatable product, the attachment between the pull tape and the inflatable product and the attachment between the pull tape and the pull tape comprise welding or bonding, the base of the pull tape may be attached in whole or in part to the inflatable chamber wall of the inflatable product, and the attachment strip may be attached in whole or in part to the inflatable chamber wall of the inflatable product.

In an exemplary embodiment, the draw tape obtained by the above-described manufacturing method forms a straight draw tape or a Y-shaped draw tape in use, as shown in FIG. 12.

In an exemplary embodiment, the drawstring material is a single layer of material, such as PVC, TPR, EVA, or a cloth, or a multi-layer material, such as a fabric material disposed between two attachment layers (PVC/TPR/EVA/cloth).

Compared with the technical scheme that an integral straight drawstring or a hollowed straight drawstring is adopted in the prior art, the invention realizes the maximum utilization of the drawstring material, the drawstrings cut out can be used independently or in combination, the weight is reduced, and the maximum utilization of resources is realized.

The disclosed exemplary embodiments of the invention may be subject to various substitutions, combinations or modifications, and all such variations are within the spirit of the invention and scope of the invention as defined by the appended claims.

Claims (22)

1. A pull strip for an inflatable product comprising a base and a plurality of projections, the base and the plurality of projections being integrally disposed, at least a portion of the plurality of projections extending forwardly from a same side of the base in a spaced apart relationship.

2. The inflatable draw tape of claim 1, wherein the plurality of tabs are evenly spaced, with a groove formed between adjacent tabs.

3. The inflatable draw tape of claim 1, wherein the plurality of tabs have the same shape.

4. The inflatable draw tape of claim 1, wherein the tab includes one end proximate the base and another end distal from the base, the tab having a width that tapers, diverges, tapers first and then tapers, or does not change in a direction from the one end proximate the base to the another end distal from the base.

5. The inflatable drawstring of claim 1, wherein the protrusion is rectangular, square, trapezoidal, wavy, trapezoidal with concave sides, trapezoidal with convex sides, or rectangular with concave sides.

6. An inflatable product comprising an inflation chamber, said inflation chamber comprising:

the wall of the first inflatable chamber is provided with,

the second inflatable cavity wall is opposite to the first inflatable cavity wall;

characterized in that the inflating chamber further comprises at least one inner cavity drawstring, the inner cavity drawstring being a drawstring of an inflatable product according to any one of claims 1-5, the inner cavity drawstring comprising a base portion and a plurality of protrusions,

the base of the inner cavity pull belt is connected with the wall of the first inflation cavity, and the plurality of protruding parts of the inner cavity pull belt are connected with the wall of the second inflation cavity.

7. An inflatable product comprising an inflation chamber, said inflation chamber comprising:

the wall of the first inflatable chamber is provided with,

the second inflatable cavity wall is opposite to the first inflatable cavity wall;

characterized in that the inflating chamber further comprises at least one connecting strap and at least one inner cavity drawstring, the inner cavity drawstring being a drawstring of an inflatable product according to any one of claims 1-5, the inner cavity drawstring comprising a base and a plurality of protrusions,

the base part of the inner cavity pull belt is connected with the first inflatable cavity wall, the plurality of protruding parts of the inner cavity pull belt are connected with the connecting belt, and the connecting belt is connected with the second inflatable cavity wall.

8. An inflatable product comprising an inflation chamber, said inflation chamber comprising:

the wall of the first inflatable chamber is provided with,

the second inflatable cavity wall is opposite to the first inflatable cavity wall;

wherein the inflation chamber further comprises at least one inner cavity drawtape comprising a first drawtape component and a second drawtape component, the first drawtape component and the second drawtape component being drawtapes of the inflatable product according to any of claims 1-5, the first drawtape component and the second drawtape component each comprising a base and a plurality of protrusions,

the plurality of protruding portions of the first drawstring component and the plurality of protruding portions of the second drawstring component are sequentially connected, the base portion of the first drawstring component is connected with the first inflatable cavity wall, and the base portion of the second drawstring component is connected with the second inflatable cavity wall.

9. An inflatable product comprising an inflation chamber, said inflation chamber comprising:

the wall of the first inflatable chamber is provided with,

the second inflatable cavity wall is opposite to the first inflatable cavity wall;

characterized in that the inflating chamber further comprises at least one inner cavity drawstring, the inner cavity drawstring comprises a first drawstring component, a second drawstring component and a third drawstring component, the first drawstring component, the second drawstring component and the third drawstring component are drawstrings of the inflating product according to any one of claims 1 to 5, the first drawstring component, the second drawstring component and the third drawstring component respectively comprise a base part and a plurality of protruding parts, the base part and the plurality of protruding parts are integrally arranged and form a preset height,

the multiple protruding parts of the first pulling belt assembly, the second pulling belt assembly and the third pulling belt assembly are sequentially connected with one another, the base part of the first pulling belt assembly is connected with the first inflatable cavity wall, and the base parts of the second pulling belt assembly and the third pulling belt assembly are connected with the second inflatable cavity wall.

10. The inflatable product of claim 9, wherein the predetermined height of the first pull strap assembly is greater than the predetermined height of the second and third pull strap assemblies.

11. An aerated product according to any of claims 6 to 10 wherein the base is wholly connected to the first or second aerated chamber wall.

12. An aerated product according to any of claims 6 to 10 wherein the base is partially connected to the first or second aerated chamber wall.

13. An inflatable product according to any of claims 6 to 10, wherein the connection between the inner cavity pull tape and the first and/or second inflatable cavity wall, and/or between the plurality of protrusions of the inner cavity pull tape is a weld or adhesive.

14. An inflatable product according to any of claims 6 to 10, wherein the inflatable product is an inflatable mattress, an inflatable pool or an inflatable aquatic product.

15. A method of making a drawstring for an inflatable product, comprising:

step 1: providing a whole piece of drawstring material;

step 2: the unitary sheet of draw tape material is die cut a plurality of times, wherein each die cut forms at least two draw tapes, wherein each draw tape each includes a base and a plurality of tabs, at least a portion of which extend forward from the same side of the base in a spaced apart manner.

16. A method of making a drawstring for an inflatable product, comprising:

step 1: providing a whole piece of drawstring material;

step 2: subjecting the unitary sheet of draw tape material to multiple die cuts, wherein each die cut forms at least two draw tapes, wherein each draw tape each includes a base and a plurality of tabs, at least a portion of the plurality of tabs extending forward from the same side of the base in a spaced apart manner;

and step 3: providing a connecting strap, connecting the connecting strap with the plurality of protrusions of each of the pull straps.

17. A method of making a drawstring for an inflatable product, comprising:

step 1: providing a whole piece of drawstring material;

step 2: processing the unitary sheet of draw tape material to form at least two draw tapes, wherein each draw tape includes a base and a plurality of tabs, at least a portion of the plurality of tabs extending forwardly from the same side of the base in a spaced apart manner;

and step 3: and selecting the two drawstrings obtained in the step, and connecting the end part of the protruding part of one drawstring, which is far away from the base, with the end part of the protruding part of the other drawstring, which is far away from the base.

18. A method of making a drawstring for an inflatable product, comprising:

step 1: providing a whole piece of drawstring material;

step 2: subjecting the unitary sheet of draw tape material to multiple die cuts, wherein each die cut forms at least two draw tapes, wherein each draw tape each includes a base and a plurality of tabs, at least a portion of the plurality of tabs extending forward from the same side of the base in a spaced apart manner;

and step 3: and selecting the three drawstrings obtained in the step, and connecting the end part of the protruding part of one drawstring, which is far away from the base, with the end parts of the protruding parts of the other two drawstrings, which are far away from the base.

19. A method of manufacturing an inflatable product comprising:

step 1: providing a whole piece of drawstring material;

step 2: subjecting the unitary sheet of draw tape material to multiple die cuts, wherein each die cut forms at least two draw tapes, wherein each draw tape each includes a base and a plurality of tabs, at least a portion of the plurality of tabs extending forward from the same side of the base in a spaced apart manner;

and step 3: the base of each pull strap is attached to a first plenum wall of the inflatable product, and the ends of the plurality of tabs of each pull strap distal from the base are attached to a second plenum wall of the inflatable product.

20. A method of manufacturing an inflatable product comprising:

step 1: providing a whole piece of drawstring material;

step 2: subjecting the unitary sheet of draw tape material to multiple die cuts, wherein each die cut forms at least two draw tapes, wherein each draw tape each includes a base and a plurality of tabs, at least a portion of the plurality of tabs extending forward from the same side of the base in a spaced apart manner;

and step 3: providing a connecting strap, connecting the connecting strap with the end of the plurality of protrusions of each of the pull straps;

and 4, step 4: the base of each pull strap is attached to a first inflatable chamber wall of the inflatable product and the attachment strap is attached to a second inflatable chamber wall of the inflatable product.

21. A method of manufacturing an inflatable product comprising:

step 1: providing a whole piece of drawstring material;

step 2: processing the unitary sheet of draw tape material to form at least two draw tapes, wherein each draw tape includes a base and a plurality of tabs, at least a portion of the plurality of tabs extending forwardly from the same side of the base in a spaced apart manner;

and step 3: selecting two drawstrings obtained in the step, and connecting the end part of the protruding part of one drawstring, which is far away from the base, with the end part of the protruding part of the other drawstring, which is far away from the base, so as to obtain a complete drawstring;

and 4, step 4: one base of the complete pull tape is connected with a first inflation cavity wall of the inflatable product, and the other base of the complete pull tape is connected with a second inflation cavity wall of the inflatable product.

22. A method of manufacturing an inflatable product comprising:

step 1: providing a whole piece of drawstring material;

step 2: subjecting the unitary sheet of draw tape material to multiple die cuts, wherein each die cut forms at least two draw tapes, wherein each draw tape each includes a base and a plurality of tabs, at least a portion of the plurality of tabs extending forward from the same side of the base in a spaced apart manner;

and step 3: selecting the three drawstrings obtained in the step, namely a first drawstring, a second drawstring and a third drawstring respectively, and connecting the end part of the protruding part of the first drawstring, which is far away from the base part, with the end part of the protruding part of the second drawstring, which is far away from the base part, and the end part of the protruding part of the third drawstring, which is far away from the base part;

and 4, step 4: and connecting the base of the first pull tape with the first inflatable cavity wall of the inflatable product, and connecting the base of the second pull tape and the base of the third pull tape with the second inflatable cavity wall of the inflatable product.

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