Ski Boot Binding Anchorage With V-Shaped Metal Reinforcement
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Solution Overview
Problem
Existing anchorage systems for flexible ski soles fail to securely attach metal binding parts due to poor bonding between metal and plastic, leading to delamination and tearing, and do not provide sufficient torsional rigidity and flexibility.
Innovation Solution
A V-shaped metal piece with punched-out openings is welded or glued to the flexible ski sole, providing multiple welding points around a round binding part to distribute force and ensure a sufficient volume of plastic material, allowing for optimal positioning and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a metal binding part is anchored directly in flexible plastic ski sole material, then the anchorage system provides simplicity, but the bonding between metal and plastic is poor leading to delamination and tearing
Solution Approach 1:
A V-shaped metal piece serves as an intermediary element between the round binding part and the plastic ski sole. This V-shaped piece is welded to the binding part and embedded in the plastic, creating a reliable transition zone that prevents direct metal-plastic bonding failures while maintaining structural integrity
Solution Approach 2:
The anchorage system is divided into separate functional components: the round binding part, the V-shaped metal piece, and the plastic ski sole. This segmentation allows each component to be optimized independently - the metal pieces provide strong bonding interfaces while the plastic maintains flexibility, avoiding the delamination issues of direct metal-plastic bonding
2Manufacturing precision
If the plastic material thickness is reduced to allow optimal positioning of the binding point, then flexibility and positioning precision improve, but the plastic material becomes more prone to tearing around the metal part
Solution Approach 1:
The V-shaped metal piece creates localized reinforcement zones within the plastic material. The geometry of the V-shape concentrates the plastic material in specific areas around the binding point, providing enhanced tear resistance exactly where needed while allowing thin plastic elsewhere for optimal flexibility and positioning
Solution Approach 2:
The V-shaped metal piece extends in multiple dimensions (vertical and lateral arms), creating a three-dimensional anchorage structure that distributes forces throughout the plastic material. This dimensional expansion prevents tearing by spreading the load across a larger volume of plastic rather than concentrating it at a single interface
3Strength
If welding is used to attach the binding part to the ski sole, then strong connection is achieved, but the welding breaks under strong forces and plastic delamination occurs
Solution Approach 1:
The welding process is segmented into multiple discrete welding points distributed around the binding part rather than a single continuous weld. This segmentation distributes the mechanical forces across multiple welding points, preventing any single weld from failing under strong forces while maintaining overall connection strength
Solution Approach 2:
The V-shaped metal piece creates localized bonding interfaces where welding occurs. By concentrating the welding at specific points on the V-shape rather than across the entire binding part surface, the system achieves strong connection at critical locations while allowing the plastic material to remain flexible and resistant to delamination
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 secure and flexible anchorage system that withstands strong forces, maintaining the ski sole's flexibility and preventing delamination, while allowing for optimal positioning of the binding point.
Implementation Method 1
A V-shaped metal piece with punched-out openings is welded or glued to the flexible ski sole
Implementation Method 2
A V-shaped metal piece with punched-out openings is welded or glued to the flexible ski sole
Data Source
AI summary
The present invention relates to an assembly for anchorage of a binding part (1) in a ski shoe, wherein the binding part (1) comprises an oblong, round part of metal or other material with pins (2) projecting at either side, wherein the binding part (1) is arranged in a sole (8), such that the pins project at either side of the front end of the sole (8) transversely of the longitudinal direction of a ski. The binding (1) is mounted onto or comprises at least one anchorage part (3) with openings (4) and holders-on (6), wherein the anchorage part (3) forms an opening into which the binding part (1) fits, the anchorage part (3) and the bonding part (1) comprising at least to attachment points (5) in the circumference of the round binding part (1).