Inflatable Kayak Bottom Bending Method Using Drop Stitch Material
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Solution Overview
Problem
Existing inflatable kayaks face issues with low strength, safety, and complex structures due to their float-type designs and require multiple inflation steps, limiting their ease of use and flexibility in bending angles.
Innovation Solution
A bending method for an inflatable kayak bottom involving cutting and sewing drop stitch material, creating a hole zone for air seal installation, and using shaping devices to form a deformable structure that is easy to inflate and use, allowing for quick bending and connection of the kayak's front and rear openings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If float-type ordinary airtight fabric is used for inflatable kayak, then weight is reduced and flexibility is improved, but strength and safety are compromised
Solution Approach 1:
The patent uses composite material construction by combining multiple layers of airtight fabric with drop stitch material. The fabric layers are sewn together with threads that pass through multiple layers, creating a composite structure that maintains flexibility while significantly improving strength and safety compared to single-layer float-type materials.
2Strength
If drop stitch material with three or more airbags is used, then strength is improved, but structure becomes complicated and shape formation is poor
Solution Approach 1:
The patent divides the inflatable kayak into multiple airbags (front airbag, middle airbag, rear airbag) separated by partition walls. This segmentation allows each airbag to be independently inflated and shaped, simplifying the overall structure while maintaining strength. The partition walls provide structural support without requiring complex multi-chamber designs.
Solution Approach 2:
The patent implements a dynamic inflation process where airbags are inflated in sequence (front first, then middle, then rear) to achieve proper shape formation. This dynamic approach allows the kayak to progressively take shape during inflation, avoiding the problem of poor shape formation that occurs with simultaneous inflation of multiple airbags.
3Shape
If multiple inflation steps are required for bending, then shape formation is achieved, but ease of operation is reduced
Solution Approach 1:
The patent performs preliminary shaping actions by pre-positioning the partition walls and pre-configuring the airbag structures before inflation. The bendable parts are pre-formed with appropriate curvature, and the air seals are pre-installed in correct positions. This preliminary preparation allows the kayak to achieve proper shape with fewer inflation steps and less manual manipulation during the inflation process.
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
The method results in a deformable kayak bottom with enhanced strength, practicality, and ease of use, featuring low costs and improved on-water performance with better air tightness and bending capabilities.
Implementation Method 1
Covering the outside of the hole zone on both sides of the drop stitch material of the fabric 2 with air seals to prevent leakage of air from inside the hole zone
Implementation Method 2
Inflating the air chamber (100) creates internal pressure to maintain kayak shape and structure
Implementation Method 3
airtight fabric layers (110, 120) in a woven fabric construction
Data Source
AI summary
A bending method for an inflatable kayak bottom includes: step 1: cutting the fabric; step 2: sewing and locking; step 3: performing air seal installation in a hole zone; step 4: performing air seal installation around a drop stitch material and placing a nozzle; and step 5: bending into shape, the inflatable kayak bottom becoming airtight overall. In the present application, the drop stitch material of the kayak bottom is sewn and locked to make a deformable kayak bottom structure, which features low costs, easy use and high practicality.