Dual Angular Positioning Base Plate for Snowboard Boot Retention

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Solution Overview

Problem

Existing boot retention systems for gliding boards, such as snowboards, lack versatility, requiring separate bases for rental and private use, and often compromise on clamping pressure, angular adjustment precision, and compactness, leading to increased manufacturing costs and complexity.

Innovation Solution

A base with dual angular positioning mechanisms that accommodate two types of holding discs, allowing for versatile use with different disc configurations, reducing the need for multiple base references and enhancing ease of assembly and robustness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a single base design is used for both rental and private use, then manufacturing complexity and costs are reduced, but adaptability to different disc types is limited

Engineering Contradiction:

Improvemanufacturing complexityVSAvoidcompatibility with disc types

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The base is designed with a universal interface system that can accommodate both first type holding discs (with peripheral positioning means) and second type holding discs (with bore positioning means). The orifice is configured to receive either positioning mechanism, allowing a single base design to serve multiple functions and be compatible with different disc types for both rental and private use applications.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Strength

If teeth are used for rotation resistance and transverse force resistance, then structural strength is improved, but angular adjustment precision is reduced due to large pitch

Engineering Contradiction:

Improverotation resistanceVSAvoidangular adjustment precision

Core Design Contradiction:

StrengthVSManufacturing precision

Solution Approach 1:

The positioning function is segmented between two separate mechanisms: the teeth provide coarse positioning and structural strength for rotation resistance, while the bearing provides fine angular adjustment precision. The bearing's internal geometry allows for precise angular positioning independent of the tooth pitch, resolving the contradiction between strength and precision.

Inventive Principle:

Principle #1Segmentation

3Stress or pressure

If retractable fins are deployed to limit base spacing, then clamping pressure is improved, but device complexity increases

Engineering Contradiction:

Improveclamping pressureVSAvoidmechanism complexity

Core Design Contradiction:

Stress or pressureVSDevice complexity

Solution Approach 1:

The clamping pressure function is extracted from the complex retractable fins mechanism and transferred to the bearing. The bearing's design inherently provides the clamping action through its internal geometry and interaction with the orifice, eliminating the need for additional retractable fins while maintaining the necessary clamping pressure.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentEP2745887B1Boot binding on sports equipment

Publication Date: 2015.08.12 SALOMON SA

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AI summary

The base plate (100) has an orifice including a bore intended to accommodate a retaining disk (500) on the base of a snowboard. An angular positioning unit for one type of retaining disk borders the periphery of the bore, and oriented towards a receiving surface of the base plate. Another angular positioning unit for another type of retaining disk is placed on the bore of the orifice. The former angular positioning unit is set back with respect to the receiving surface, and oriented perpendicularly to the latter angular positioning unit. An independent claim is also included for a fixing device for fixing a shoe on a gliding board.