Clamping Strap for Ski Shoes With Dual Length Adjustment
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Solution Overview
Problem
Existing tightening systems for skiing boots do not allow for fine adjustments to accommodate individual skier morphologies, leading to inadequate grip and force transmission, and lack flexibility in adjusting tension and orientation.
Innovation Solution
A tightening strap with two independent longitudinal sections and a central support element that allows for double adjustment of length and translational movement, enabling precise adaptation to the skier's leg morphology.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single integral rear plate is used for the tightening means, then the structure is simple and easy to manufacture, but the skier cannot perform fine adjustments to adapt to their own morphology
Solution Approach 1:
The tightening strap is divided into two independent longitudinal sections (first section and second section) that can be adjusted separately. Each section has its own length adjustment capability through connecting elements, allowing independent adaptation to the skier's leg morphology. This segmentation enables fine adjustments while maintaining a relatively simple overall structure.
2Adaptability or versatility
If the rear plate is fixed and integral with the boot, then the manufacturing is simplified, but the strap cannot be moved laterally or turned around the collar for different orientations
Solution Approach 1:
The central support element is made movable relative to the rear plate, replacing the fixed integral structure. The connecting elements allow the strap sections to be repositioned and reoriented around the collar, providing dynamic adjustment capability for different orientations while maintaining ease of manufacture through simple connection mechanisms.
3Adaptability or versatility
If a single longitudinal strap section is used, then the device is simple, but it only allows adjustment of length on one side and cannot provide double adjustment
Solution Approach 1:
The strap is segmented into two independent longitudinal sections that connect to the central support element. Each section can be independently adjusted in length through its own connecting elements, providing double adjustment capability. This segmentation increases adaptability while keeping each individual section relatively simple in structure.
4Adaptability or versatility
If the band is made of inextensible material, then the tightening tension is maintained, but fine adjustments to accommodate individual morphology are difficult
Solution Approach 1:
The connecting elements are designed to be movable along the strap sections, enabling dynamic adjustment of the strap length. This allows the skier to make precise fine adjustments to accommodate individual leg morphology while the inextensible band material maintains the tightening tension once adjusted.
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3~4
AI summary
The present invention relates to a tightening strap for a ski sport shoe (C) extending upwards by means of an upper part (M), said strap comprising a band (1) retained on the rear of the upper part (M) and connected on the front to a central support element (3), said band (1) being intended to surround the upper part (M) of the shoe to tighten the lower leg, characterized in that said central support element (3) is free in translation in the extension of the two longitudinal sections (la, 1b) of the band (1) to which it is connected by connecting elements (2a, 2b) ensuring, on both sides, a double adjustment of the length of the strap.