Center Kickstand with Shared Pivot Axle for Swing Arm Suspension
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Solution Overview
Problem
Conventional two-legged kickstands for two-wheeled vehicles with rear swing arm suspension systems face compatibility issues with certain vehicle components and provide insufficient support on uneven surfaces due to their design, leading to instability when parked.
Innovation Solution
A center-mounted kickstand with two legs and flanges, featuring sunken relief features and a pivotable cylindrical shaft, which allows for secure attachment to a pivot axle shared with the swing arm, enabling independent rotation and improved stability by distributing weight evenly across the ground.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a conventional two-legged kickstand is used with a pivotable cylindrical shaft extending transversely, then the kickstand can support the vehicle in an upright orientation, but it conflicts with components extending on the longitudinal plane such as the exhaust pipe or muffler
Solution Approach 1:
The patent applies preliminary anti-action by designing sunken relief features in the flanges that preemptively avoid conflict with vehicle components. The relief features are strategically positioned to prevent interference with exhaust pipes, mufflers, and other components extending on the longitudinal plane before conflicts can occur, allowing the kickstand to be used on vehicles with various component configurations.
Solution Approach 2:
The patent resolves the spatial conflict by utilizing the vertical dimension through sunken relief features. Instead of extending horizontally where components are located, the relief features create vertical clearance by sinking into the flange structure, allowing the kickstand shaft to rotate freely without interfering with longitudinally-extending vehicle components.
2Stability of the object's composition
If a conventional center kickstand is used, then the vehicle can be supported in an upright orientation, but the legs may conflict with components outside the mainframe such as footrests or the swing arm when swinging up and down
Solution Approach 1:
The sunken relief features serve as preliminary anti-action measures that prevent interference with swing arms and footrests before it occurs. By creating clearance zones in advance within the flange structure, the design ensures that the rotating legs will not collide with or interfere with these external components during operation.
3Device complexity
If a single-leg kickstand is used, then the structure is simpler, but the vehicle balance is insecure especially on uneven surfaces like gravel or dirt
Solution Approach 1:
The patent merges the benefits of a simple single-leg structure with the stability of a two-legged design by using two legs that rotate on a shared pivot axle. This combination maintains structural simplicity while achieving reliable vehicle support on uneven surfaces through the distributed contact points of the two legs.
4Stability of the object's composition
If the kickstand legs are attached to a shared pivot axle, then the weight is distributed evenly, but the legs may conflict with exhaust pipes or mufflers extending on the longitudinal plane
Solution Approach 1:
The sunken relief features are designed in advance to prevent conflicts with exhaust pipes and mufflers. By creating clearance zones within the flange structure before any potential interference can occur, the design allows the shared pivot axle configuration to maintain even weight distribution without compromising compatibility with longitudinally-extending components.
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 center kickstand maintains stability on various surfaces and avoids conflicts with vehicle components, ensuring secure support and upright orientation while parked, even on uneven terrain, and remains functional during vehicle motion.
Implementation Method 1
a spring providing both linear and torsional forces
Data Source
AI summary
A center mounted kickstand for a two-wheeled vehicle with a swing arm rear suspension includes a rotatable apparatus, and a pivot axle. The rotatable apparatus is mounted onto a mainframe of the two-wheeled vehicle via the pivot axle, and the pivot axle is mounted transversely to a longitudinal plane of the two-wheeled and connects the swing arm to the two-wheeled vehicle. The rotatable apparatus is constructed to slide in both directions transverse the longitudinal plane of the two-wheeled vehicle on the pivot axle.