Recreational Flotation Device Single Seam Welding Method
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Solution Overview
Problem
Existing methods for manufacturing recreational flotation devices, such as floating mattresses, require multiple welding steps and result in material wastage due to the cutting of circular end segments.
Innovation Solution
A method involving a single welding seam for each buoyant member attached to the inner member, reducing the number of welding steps and material wastage by aligning peripheral portions of sheets and welding them together with the inner member in a continuous seam.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional manufacturing methods with multiple welding steps are used, then structural integrity can be maintained, but manufacturing complexity and time increase
Solution Approach 1:
The patent combines multiple separate welding operations into a single continuous welding seam that simultaneously attaches both sheets to each other and to the inner member. This merging of welding steps reduces manufacturing complexity while maintaining the required structural connections.
Solution Approach 2:
The method involves preliminarily positioning the inner member between the second peripheral portions of the sheets before performing the welding operation. This preliminary arrangement enables the subsequent single welding step to efficiently complete all necessary attachments without requiring multiple separate welding operations.
2Ease of manufacture
If circular end segments are cut from plastic material, then buoyant members can be formed, but material wastage occurs
Solution Approach 1:
The patent employs circular end segments cut from rectangular plastic sheets to form the ends of cylindrical buoyant members. While this approach enables buoyant member formation, it inherently generates material waste from the cutting process, representing a trade-off between manufacturability and material efficiency.
3Reliability
If multiple welding steps are performed, then attachment reliability can be ensured, but manufacturing time increases
Solution Approach 1:
The patent merges multiple welding operations into a single continuous welding seam that performs all necessary attachments in one operation. This combines the functions of attaching the first sheet to the second sheet and attaching both sheets to the inner member, thereby improving manufacturing speed while maintaining attachment reliability through continuous welding.
Solution Approach 2:
The welding process is performed as a continuous operation along a single seam that simultaneously accomplishes multiple attachment tasks. This continuity eliminates the interruptions and repositioning required by multiple separate welding steps, thereby increasing productivity while ensuring reliable attachments through unbroken welding.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach simplifies the manufacturing process, saves time, and minimizes material waste while maintaining the structural integrity of the flotation device.
Implementation Method 1
a single welding seam fusing the first peripheral portions of the first and second sheets, and further fusing the second peripheral portions of the first and second sheets and the first end of the inner member
Data Source
AI summary
This invention relates to recreational flotation devices, and particularly to floating mattresses or lounges, and to a method for manufacturing same.