Splitboard Ski Fastening Lever and Crossbar Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional splitboard latching devices are not easily adjustable to accommodate different manufacturers' tolerances and do not allow for fast, in-situ latching and unlatching, leading to unpredictable board movement and potential loss of control during downhill skiing due to shear forces between the splitboard skis.
Innovation Solution
An adjustable crossbar and rotatable lever attachment system that includes a shear bushing interface, allowing for fine adjustments and reduction of relative movement between splitboard skis, with a set screw mechanism for crossbar adjustment and a lever that exerts a lateral force in a locked configuration to enhance torsional stiffness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional latching devices are used at the center seam, then torsional stiffness is increased, but the devices are not easily adjustable to different manufacturers' tolerances and do not allow for fast latching and unlatching
Solution Approach 1:
The latching system employs a lever that can rotate between locked and unlocked positions, enabling dynamic adjustment. The lever attachment includes a post that rotates within a bushing, allowing the system to transition between states of high torsional stiffness (locked) and easy adjustment (unlocked), resolving the contradiction between strength and ease of operation
Solution Approach 2:
The system allows adjustment of the crossbar position relative to the center seam through the lever mechanism, changing the geometric parameters of the latching system. This enables adaptation to different manufacturers' tolerances while maintaining the ability to provide high torsional stiffness when locked
2Stability of the object's composition
If the crossbar is positioned to maximize torsional stiffness, then board movement is reduced, but the crossbar may overhang the center seam during touring mode
Solution Approach 1:
The crossbar is made rotatable about its longitudinal axis through the lever attachment mechanism. This allows the crossbar to be oriented in different positions: extended beyond the center seam for optimal torsional stiffness during riding mode, and retracted to a stowed position during touring mode, enabling adaptation to different operational requirements
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 system provides improved torsional stiffness and reduced shear movement between splitboard skis, enhancing control and safety by allowing for precise adjustments and quick transitions between touring and riding modes.
Implementation Method 1
A rotatable lever attachment is configured to be coupled to the second splitboard ski, and includes an eccentric post, defining an axis of rotation, and coupled to a lever. Wherein, in a locked configuration, the eccentric post exerts a lateral force against the engagement interface of the crossbar based upon rotation of the lever.
Implementation Method 2
a shear bushing is configured to be coupled to the second splitboard ski adjacent the axis of rotation of the post; wherein the crossbar further comprises a shear bushing interface configured for engagement with the shear bushing. engagement between the shear bushing and the shear bushing interface decreases the relative movement of the first splitboard ski to the second splitboard ski in a direction transverse to a plane of the splitboard.
Data Source
AI summary
The splitboard fastening system is for use with a splitboard having first and second splitboard skis. The splitboard fastening system includes an adjustable crossbar attachment, configured to be coupled to the first splitboard ski, and including a crossbar having an engagement interface that is adjustable relative to a center seam of the splitboard. A rotatable lever attachment is configured to be coupled to the second splitboard ski, and includes a post, defining an axis of rotation, and coupled to a lever. Wherein, in a locked configuration, the post exerts a lateral force against the engagement interface of the crossbar based upon rotation of the lever.