Integrated Shoe Design Using Merged Upper and Sole
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Solution Overview
Problem
Traditional shoe manufacturing methods result in shoes with insufficient comfort, high production costs, and complex labor-intensive processes, failing to meet the needs of users requiring maximum quality and comfort, while also limiting aesthetic customization.
Innovation Solution
A shoe design featuring an anatomically contoured plantar insert made of elastically deformable material with superimposed structural reinforcement flaps and a wear-resistant covering layer, manufactured using a simplified method involving die-formed components and adhesive or stitching bonding, to enhance comfort and aesthetic appeal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional shoe manufacturing methods are used with separate sole and upper assembly, then production flexibility is maintained, but manufacturing complexity and labor requirements increase significantly
Solution Approach 1:
The patent merges the sole and upper into a single integrated component formed by one continuous piece of material. The material is folded to create the upper portion while the bottom surface forms the sole, eliminating the need for separate assembly operations and reducing manufacturing complexity.
Solution Approach 2:
A single material piece serves multiple functions: it forms both the upper and sole, provides structural support, creates aesthetic patterns through folding, and enables various closure mechanisms. This multi-functionality reduces the number of components and simplifies the manufacturing process.
2Productivity
If traditional multi-step assembly processes are used, then structural integrity is maintained, but production time and costs increase
Solution Approach 1:
The desired three-dimensional shoe shape and sole curvature are pre-formed during the single-step molding process. The material is shaped in the mold with the final configuration including the upper, sole, and any structural reinforcements already in place, eliminating the need for subsequent assembly steps.
Solution Approach 2:
While the component is single-piece, the folding process creates distinct functional zones (upper, sole, reinforcement areas) that are integrated but visually and functionally segmented. This allows complex functionality to be achieved without complex assembly.
3Adaptability or versatility
If traditional separate sole and upper construction is used, then aesthetic customization is possible through independent treatment, but the shoe lacks structural integration and comfort optimization
Solution Approach 1:
Different regions of the single material piece can have different properties or treatments. The folding process creates local variations in thickness, texture, and stiffness that provide both aesthetic differentiation and functional optimization for specific areas like the heel, toe, or arch support zones.
Solution Approach 2:
The material is folded and molded to create anatomical curvatures that match the foot's shape, providing ergonomic comfort and plantar support. The continuous folding process creates smooth transitions and ergonomic contours that would be difficult to achieve with separate assembled components.
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 solution provides a comfortable shoe with excellent plantar support, reduced production complexity, and lower costs, while allowing for customizable aesthetic and functional features.
Implementation Method 1
The plantar insert 4 is made of elastically deformable material (for example latex), which may also have an elastic deformability which can vary along its surface
Implementation Method 2
said edge and said borders are mutually coupled to one another, in particular by adhesive bonding and/or stitching and/or thermal bonding
Implementation Method 3
manufactured using a simplified method involving die-formed components
Data Source
Figure 1~4
Figure 2~3
Figure 5~6
AI summary
A shoe (1) of the type which comprises a sole (3) and an upper (2), the sole (3) comprising a plantar insert (4), at least one layer (5) for covering the lower surface of the plantar insert (4) with perimetric edges (6) which substantially protrude outward with respect to the contour of the plantar insert (4), at least one flap (7, 8) for covering the upper surface of the plantar insert (4), which also has a perimetric border (7a, 8a) which substantially protrudes outward with respect to the contour of the plantar insert (4). The edge (6) and the border (7a, 8a) are rigidly coupled to each other and to the upper (2). The covering layer (5) of the lower surface of the plantar insert (4) can be covered with a base (10) of wear-resistant material.