Welding process and product for inflatable product

Patent metadata

Field	Value
Publication number	US-10076874-B2
Application number	US-201715416601-A
Country	US
Kind code	B2
Filing date	Jan 26, 2017
Priority date	Nov 25, 2013
Publication date	Sep 18, 2018
Grant date	Sep 18, 2018

Abstract

A welding process of an inflatable product is provided that includes using isolating members between first and second portions of weldable tensioning members to resist the first and second portions of the weldable tensioning structures being welded together during welding of the first portions to a first sheet of weldable material and welding of the second portions to a second sheet of weldable material.

First claim

What is claimed:

1. A method for producing an inflatable product including the steps of
providing a first sheet made of weldable plastic,
providing a second sheet made of weldable plastic, the first and second sheets cooperating to define an inflatable chamber,
providing a side panel;
providing a plurality of tensioning structures, each tensioning structure including a weldable plastic, the plurality of tensioning structures including a first portion and a second portion,
providing an isolating member material on a roll, the isolating member material being configured to isolate the first portions of the tensioning structures from the second portions of the tensioning structures, and
unwrapping a plurality of isolating members from the roll,
positioning at least one of the plurality of isolating members between the first and second portions of each of the plurality of tensioning structures,
welding the first portion of the plurality of tensioning structures to the first sheet while at least one of the plurality of isolating members is positioned between respective first and second portions of each of the plurality of tensioning structures, such that the isolating member prevents any welding of the first portion to the second portion during said step of welding the first portion,
welding the second portion of the plurality of tensioning structures to the second sheet while at least one of the plurality of isolating members is positioned between respective first and second portions of each of the plurality of tensioning structures, such that the isolating member prevents any welding of the first portion to the second portion during said step of welding the second portion; and
sealing the first and second sheets together by welding the side panel to the first and second sheets to define the inflatable chamber, the plurality of isolating members being positioned between the first sheet and the second sheet and within a periphery of the side panel during the sealing step, such that the plurality of isolating members remain positioned in the inflatable chamber together with the plurality of tensioning structures after the sealing step.

2. The method of claim 1 , wherein the isolating member material is non-metallic.

3. The method of claim 1 , wherein the isolating member material is a film.

4. The method of claim 1 , further comprising the step of cutting a plurality of strips of the isolating member material from the roll to create the plurality of isolating members.

5. The method of claim 4 , wherein the step of cutting each strip occurs before positioning of a respective isolating member is complete.

6. The method of claim 4 , wherein the step of cutting each strip occurs after positioning of a respective isolating member is complete.

7. The method of claim 1 , wherein the first and second portions of the plurality of tensioning structures are each weld strips.

8. The method of claim 1 , wherein the isolating member material is formed of insulating paper, release paper, non-woven fabric, laminated fabric, oxford fabric, or plastic.

9. The method of claim 1 , wherein the welding steps are performed simultaneously by simultaneously welding the first and second portions of the plurality of tensioning structures to the first and second sheets respectively.

10. The method of claim 1 , further comprising folding each of the plurality of tensioning structures before the welding steps, wherein the tensioning structures remain folded during the welding steps.

11. The method of claim 10 , wherein the folding step includes positioning the first portions of the tensioning structures adjacent the second portions of the tensioning structures with the plurality of isolating members respectively disposed therebetween.

12. The method of claim 1 , further comprising the step of clamping the first portions and second portions of the plurality of tensioning structures together during the welding steps.

13. The method of claim 12 , further comprising the step of unclamping the first and second portions of the plurality of tensioning structures and separating the first and second portions of the plurality of tensioning structures after the welding steps.

14. The method of claim 12 , wherein the step of clamping comprises clamping the first and second sheets, the first and second portions of the plurality of tensioning structures, and the plurality of isolating members by upper and lower bars during the welding steps.

15. The method of claim 1 , wherein the first and second portions of the plurality of tensioning structures are each pairs of weld strips.

16. The method of claim 1 , wherein the first and second portions of the plurality of tensioning structures are each single weld strips.

17. The method of claim 1 , wherein each of the plurality of tensioning structures includes a plurality of strands.

18. The method of claim 17 , wherein a plastic adhesive sheet is provided on the plurality of strands.

19. The method of claim 1 , wherein each of the plurality of tensioning structures includes an alignment strand.

20. The method of claim 1 , wherein the first and second portions of each tensioning structure are separated by a thickness less than a thickness of the tensioning structure during the welding steps.

21. The method of claim 1 , wherein the plurality of isolating members comprise non-metallic isolating members.

22. The method of claim 21 , wherein the non-metallic isolating members are each formed from a flexible film.

23. The method of claim 9 , wherein the plurality of isolating members are respectively positioned between the first and second portions during the step of simultaneously welding.

24. The method of claim 1 , wherein the first and second portions of the plurality of tensioning structures are spaced apart by the plurality of isolating members.

25. A method for producing an inflatable product including the steps of
providing a first sheet made of weldable plastic,
providing a second sheet made of weldable plastic, the first and second sheets cooperating to define an inflatable chamber,
providing a side panel,
providing a plurality of tensioning structures, each tensioning structure including a weldable plastic, the plurality of tensioning structures including a first portion and a second portion,
providing an isolating member material on a roll, the isolating member material comprising a film configured to isolate the first portions of the tensioning structures from the second portions of the tensioning structures, and
unwrapping a plurality of isolating members from the roll,
positioning at least one of the plurality of isolating members between the first and second portions of each of the plurality of tensioning structures,
welding the first portion of the plurality of tensioning structures to the first sheet while at least one of the plurality of isolating members is positioned between respective first and second portions of each of the plurality of tensioning structures, such that the isolating member prevents any welding of the first portion to the second portion during said step of welding the first portion,
welding the second portion of the plurality of tensioning structures to the second sheet while at least one of the plurality of isolating members is positioned between respective first and second portions of each of the plurality of tensioning structures, such that the isolating member prevents any w

Assignees

• Intex Marketing Ltd

Inventors

• Lin Hua Hsiang
• Hsu Yaw Yuan

Classifications

• Y10T428/1352

  Polymer or resin containing [i.e., natural or synthetic] · CPC title

• B29C66/81427

  comprising a single ridge, e.g. for making a weakening line; comprising a single tooth · CPC title

• B29C66/7315

  Mechanical properties · CPC title

• B29C66/71

  characterised by the composition of the plastics material of the parts to be joined (welding bar compositions B29C65/125) · CPC title

• B32B37/26

  with at least one layer which influences the bonding during the lamination process, e.g. release layers or pressure equalising layers · CPC title