Anti-rotation Bracket for Vehicle Foot Pegs
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Solution Overview
Problem
Existing foot peg designs for vehicles like bicycles and scooters often experience unwanted rotation due to loose joining mechanisms, especially when using a single bolt, which can be insecure and inconvenient, particularly when switching between different types of pegs.
Innovation Solution
An anti-rotation bracket with a flat region and a right-angle extension that fits within a vehicle component's indentation, preventing rotation by abutting the horizontal indented component, and can be used with both cylindrical and horizontal components, ensuring secure attachment and easy replacement of pegs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single bolt is used to attach the peg, then the device complexity is reduced, but the peg can rotate when the joining mechanism becomes loose
Solution Approach 1:
The joining mechanism is divided into separate functional elements: a bolt for securing, a lock washer for preventing loosening, and an anti-rotation bracket for preventing rotation. This segmentation allows each element to perform its specific function effectively while maintaining overall simplicity.
Solution Approach 2:
The anti-rotation bracket acts as an intermediary element between the bolt and the peg. It receives the bolt's securing action and translates it into rotational constraint, mediating the connection between the fastening mechanism and the peg to prevent rotation without requiring direct engagement that would increase complexity.
2Reliability
If lock washers are employed to prevent bolt loosening, then the reliability improves, but the device complexity increases and rotation can still occur
Solution Approach 1:
The anti-rotation bracket combines multiple functions into a single integrated component: it secures the peg to the vehicle, prevents bolt loosening through its engagement with the bolt head, and prevents peg rotation through its geometric engagement with the peg and vehicle mounting surface. This merging reduces overall device complexity while maintaining or improving reliability.
Solution Approach 2:
The anti-rotation bracket serves multiple purposes simultaneously: it acts as a mounting bracket, a lock washer alternative, and an anti-rotation device. This multi-functionality eliminates the need for separate components, reducing complexity while providing comprehensive protection against both loosening and rotation.
3Stability of the object's composition
If a secure joining mechanism is used to prevent rotation, then the stability improves, but the ease of replacement decreases
Solution Approach 1:
The peg assembly is segmented into easily separable components: the peg itself, the anti-rotation bracket, and the bolt. This segmentation allows each component to be independently replaced or adjusted, making the overall system easy to maintain while ensuring stable attachment when assembled correctly.
Solution Approach 2:
The joining mechanism is designed to be dynamically adjustable - the bolt can be easily tightened or loosened, and the anti-rotation bracket can be removed and reattached as needed. This dynamic design maintains stability during operation while enabling easy replacement and adjustment when required.
Data Source
AI summary
An anti-rotation bracket configured to engage a horizontal indented vehicle component and fit within an indentation formed within a component attachable to the vehicle is presented. The anti-rotation bracket comprises a flat region having an opening formed therein, the flat region sized to fit within the indentation and an extension integrally formed at a right angle to the flat region, the extension sized to engage the horizontal indented vehicle component such that the extension abuts the horizontal indented vehicle component, thereby inhibiting rotation of the anti-rotation bracket.