Touring Skibinding Convex Rolling Mechanism

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Solution Overview

Problem

Existing touring skibindings disrupt natural motion sequences during ascent, leading to jerky and effortful movements due to inaccurate and error-prone mechanisms that require the foot to be put down frequently, causing deceleration and acceleration of the hips and upper body.

Innovation Solution

A touring skibinding with a support element and a bearing element featuring a convex supporting surface and two pivot axes, allowing the skiboot to pivot and roll smoothly, mimicking natural barefoot walking by enabling a fluid ergonomic motion sequence without interruption, with the skiboot moving from a standing to a pulling state while maintaining contact with the convex surface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a complex hinge mechanism with multiple plates is used to enable natural rolling during ascent, then the motion sequence is improved, but the mechanism becomes inaccurate, error-prone, and disrupts natural motion due to movement interruptions

Engineering Contradiction:
Improvenatural motion sequenceVSAvoidmechanism accuracy
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent applies a convex supporting surface (crowned surface) instead of flat plates and hinges. This curved surface enables the skiboot to roll naturally during ascent without the need for complex hinge mechanisms, eliminating movement interruptions and improving both natural motion and mechanism reliability

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The patent removes the complex hinge mechanism with multiple plates from the system. By extracting this problematic component and replacing it with a simple convex supporting surface, the invention eliminates the source of errors and movement interruptions while preserving the desired natural rolling motion

Inventive Principle:
Principle #2Taking out (Extraction)

2Adaptability or versatility

If the skiboot is only connected at the toe during ascent with free heel movement, then natural rolling is enabled, but the motion sequence is interrupted and requires frequent foot placement

Engineering Contradiction:
Improvenatural rollingVSAvoidascent efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The convex supporting surface provides continuous support during the ascent motion, allowing the skiboot to roll smoothly from standing to pulling state without interruption. This eliminates the need for frequent foot placement while maintaining natural rolling capability

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The invention ensures continuous support and contact during the ascent motion through the convex supporting surface. The skiboot maintains uninterrupted contact with the surface throughout the rolling motion, eliminating the discontinuities caused by frequent foot placement requirements

Inventive Principle:
Principle #20Continuity of useful action

3Stability of the object's composition

If a rigid connection between skiboot and ski is used, then stability during descent is improved, but natural motion during ascent is disrupted and muscular loads increase

Engineering Contradiction:
Improvedescent stabilityVSAvoidascent natural motion
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The invention segments the binding system into distinct functional zones: a convex supporting surface for natural ascent motion and a heel locking mechanism for descent stability. This segmentation allows the front part to provide natural rolling during ascent while the heel can be locked for stable descent

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The binding system dynamically adapts to different skiing phases. During ascent, the convex supporting surface enables natural rolling motion. During descent, the heel locking mechanism engages to provide stability. This dynamic behavior allows the system to optimize performance for each phase without compromising the other

Inventive Principle:
Principle #15Dynamics

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 allows for a dynamic and fluid movement of the skier's entire body with reduced muscular and joint loads, enabling more natural and efficient ascents by maintaining contact and rolling without interruption, thus reducing deceleration and acceleration efforts.

Implementation Method 1

the skiboot can be mounted in the skiboot reception such that it can pivot about a first pivot axis with respect to the skiboot reception

Methodology Applied
Scientific EffectPivoting movement: Hinge

Implementation Method 2

The bearing element is connected to the support element pivotably about a second pivot axis from an initial state to a pivoted state

Methodology Applied
Scientific EffectPivoting movement: Hinge

Implementation Method 3

Starting from the standing state, the skiboot can be moved on the convex supporting surface in the direction of the pulling state in such a way that the skiboot rolls on the convex supporting surface

Methodology Applied
Scientific EffectRolling: Roller

Data Source

PatentUS11865433B2Skibinding, in particular touring skibinding
Publication Date: 2024.01.09 FRITSCHI SWISS BINDINGS
  • US11865433B2 patent drawing
  • US11865433B2 patent drawing
  • US11865433B2 patent drawing

AI summary

A touring skibinding (1) comprises a support element (2) which can be fastened to the ski, a bearing element (3) with a skiboot reception (4) which is designed in such a way that the skiboot (5) can be mounted in the skiboot reception (4) such that the skiboot can pivot about a first pivot axis (S1) with respect to the skiboot reception (4) and a convex supporting surface (6) on which the skiboot (5) can roll, the bearing element (3) being connected to the support element (2) so as to be pivotable about a second pivot axis (S2) from an initial state into a pivoted state, wherein the skiboot (5) is moveable from a standing state, in which the skiboot (5) stands on the convex supporting surface (6), into a pulling state, in which the skiboot (5) is at least partially lifted from the convex supporting surface (6), wherein, starting from the standing state, the skiboot (5) is movable on the convex supporting surface (6) in the direction of the pulling state in such a manner that the skiboot (5) rolls on the convex support surface (6), wherein a pivoting movement of the skiboot (5) about the first pivot axis (S1) and of the bearing element (3) about the second pivot axis (S2) is effected simultaneously with the rolling process.