Motorcycle Monoshock Mount Assembly Conversion
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Solution Overview
Problem
Existing motorcycle rear suspension systems, particularly dual shock systems, are heavier and less consistently tuned compared to monoshock systems, limiting their versatility and performance based on the motorcycle's intended use and weight.
Innovation Solution
A replacement shock mount assembly for motorcycles that converts dual shock or other suspension systems into a monoshock configuration, utilizing a body mount assembly, bracing members, and a swing arm with offset shock mounts to integrate a monoshock system, allowing for installation without modifying the motorcycle frame and using existing attachment points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dual shock suspension system is used, then the motorcycle has redundancy and structural support, but the weight increases and tuning consistency decreases
Solution Approach 1:
The patent removes one shock absorber from the dual shock configuration, extracting only the necessary suspension function from a single shock mount. This eliminates redundant components while maintaining the core suspension capability, directly reducing weight while preserving reliability through the single optimized shock absorber.
Solution Approach 2:
The single shock mount assembly is designed to perform multiple functions: supporting the rear suspension, providing structural bracing, and enabling adjustable tuning. By consolidating these functions into one component, the system achieves the reliability of dual shocks through redundancy in function rather than duplicate components, while minimizing weight.
2Strength
If a dual shock suspension system is used, then the motorcycle has structural support, but the tuning consistency and performance versatility decrease
Solution Approach 1:
The shock mount assembly incorporates localized reinforcement and strategic bracing members positioned at critical stress points. This allows the single shock location to bear the full structural load that would traditionally be distributed across two shocks, maintaining structural strength while enabling focused, consistent tuning at one location rather than two.
Solution Approach 2:
The shock mount is positioned off-center relative to the motorcycle's midline, creating an asymmetric configuration that optimizes both structural support and suspension geometry. This asymmetric placement allows for better weight distribution and tuning consistency compared to traditional symmetric dual-shock arrangements.
3Weight of moving object
If a monoshock system is installed on motorcycles with existing dual shock mounting points, then the weight and tuning consistency improve, but frame modification is required
Solution Approach 1:
The shock mount assembly includes integrated bracing members that act as intermediaries, connecting the single shock mount to multiple existing frame attachment points. These bracing members distribute loads across the frame structure, eliminating the need to modify the frame itself while accommodating the monoshock configuration on dual-shock platforms.
Solution Approach 2:
The shock mount assembly is pre-configured with all necessary bracing members and attachment hardware during manufacturing. This preliminary preparation allows the assembly to be installed as a complete unit using existing frame points, eliminating the need for on-site frame modifications and simplifying the installation process despite the structural changes required.
4Device complexity
If the shock absorber is positioned centrally, then the design is symmetric and simple, but clearance with other components is insufficient
Solution Approach 1:
The shock absorber is positioned asymmetrically, offset from the motorcycle's centerline toward one side. This asymmetric placement creates sufficient clearance between the shock absorber and other central components while maintaining balanced suspension performance through compensating geometry in the linkages and bracing members.
Solution Approach 2:
Instead of resolving clearance issues by moving the shock absorber further along the same central axis, the design shifts the shock position laterally to a different dimensional plane. This lateral offset provides the necessary clearance space without significantly increasing the overall suspension travel or compromising the suspension's primary function.
Data Source
AI summary
A monoshock mount assembly allows conversion of the rear suspension system of a motorcycle from any existing configuration to a monoshock configuration that uses a single shock absorber. The monoshock mount assembly replaces factory-standard frame and suspension components. A body mount assembly attaches to existing attachment points of the motorcycle frame and provides structural support for bodywork, electrical and suspension components, and Other components. A swing arm pivotably attaches to the motorcycle frame and provides a lower shock mount, which may be offset from the centerline of the motorcycle. An upper brace attaches to the same attachment points as the body mount assembly and provides an upper shock mount that cooperates with the lower shock mount to mount the single shock absorber in a position where the shock absorber can operate normally without contacting motorcycle components supported by the body mount assembly.