Bicycle Ski Conversion System Using Tension Cords

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Solution Overview

Problem

Existing systems for converting bicycles to ski bikes are cumbersome, requiring extensive time for conversion, adjustments for the rider's position, and are often heavy, making uphill transport difficult.

Innovation Solution

A ski system that allows a bicycle to be quickly converted between wheeled and skied configurations using a ski with attachable bindings and tension cord systems, which secure the front and rear wheels to the ski.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If existing conversion systems are used to convert a bicycle to a ski bike, then the bicycle can be converted to a ski configuration, but the conversion process is cumbersome, requiring extensive time and effort

Engineering Contradiction:
Improveconversion capabilityVSAvoidconversion time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The conversion system is divided into separate modular components: the ski unit with bindings, the tensioning system with independent cords for each wheel, and the quick-release mechanisms. Each component can be independently attached or detached, enabling rapid conversion without restructuring the entire bicycle system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The ski bindings and attachment points are pre-configured on the ski unit before conversion. The tensioning cords and bindings are prepared in advance, allowing the user to simply connect pre-assembled components rather than assembling everything during conversion.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If existing conversion systems are used to convert a bicycle to a ski bike, then the bicycle can be converted to a ski configuration, but the system becomes heavy making uphill transport difficult

Engineering Contradiction:
Improveconversion capabilityVSAvoidsystem weight
Core Design Contradiction:
Adaptability or versatilityVSWeight of moving object

Solution Approach 1:

The system transitions from a static heavy structure to a dynamic lightweight configuration. The ski bindings use flexible tensioning cords instead of rigid mechanical linkages, and the quick-release fasteners allow the ski to be detached when not needed, reducing transport weight.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If existing conversion systems are used to convert a bicycle to a ski bike, then the bicycle can be converted to a ski configuration, but the construction becomes less robust

Engineering Contradiction:
Improveconversion capabilityVSAvoidconstruction robustness
Core Design Contradiction:
Adaptability or versatilityVSStrength

Solution Approach 1:

The bindings are pre-tensioned using the tensioning cord system before the ski is put into service. This preliminary tensioning ensures that the bindings are properly secured to the bicycle frame and wheels, creating a robust connection that can withstand skiing forces.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The tensioning system allows adjustment of the binding tension parameters. The user can tighten or loosen the cords to optimize the strength and security of the wheel-to-ski connection based on riding conditions, maintaining robust construction when needed.

Inventive Principle:
Principle #35Parameter changes

4Adaptability or versatility

If existing conversion systems are used to convert a bicycle to a ski bike, then the bicycle can be converted to a ski configuration, but adjustments for the rider's position are required

Engineering Contradiction:
Improveconversion capabilityVSAvoidrider position adjustment
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The ski bindings are designed to accommodate the bicycle's existing geometry and rider position. The attachment points on the frame and the binding configuration work with the bicycle's natural riding posture, eliminating the need for separate rider position adjustments during conversion.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250083730A1Ski system for a bicycle and ski bicycle
Publication Date: 2025.03.13 LAUDON HANS J
  • US20250083730A1 patent drawing
  • US20250083730A1 patent drawing
  • US20250083730A1 patent drawing

AI summary

A ski system for a bicycle including a bicycle having a front wheel and a rear wheel, a ski, and an attachment assembly attaching the ski to the wheels in the skied configuration. The attachment assembly includes a front binding and a rear binding attached to the ski for removably receiving the front wheel and the rear wheel, respectively, in the skied configuration. A front tension cord system and a rear tension cord system are couplable between the ski and the front wheel and rear wheel, respectively, in the skied configuration.