Motorcycle Retractable Peg System with Biasing Mechanism
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Solution Overview
Problem
Existing foot peg systems for motorcycles lack a retractable design that integrates aesthetically with the vehicle's structure, offering limited adjustability and safety features for rider comfort and safety.
Innovation Solution
A retractable foot peg system with a rotatably connected peg and bracket that can be adjusted for custom fit, featuring a biasing member to maintain orientation and allow easy switching between retracted and extended positions, ensuring an integrated appearance and enhanced safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the foot peg is fixed in an extended position, then rider comfort is improved, but the aesthetic appearance and safety are worsened due to visible protrusion and inability to retract
Solution Approach 1:
The foot peg is designed to be rotatable between a retracted position (flush with the bracket for aesthetic appearance) and an extended position (protruding for rider comfort). This dynamic positioning allows the system to adapt between aesthetic and functional requirements, resolving the contradiction between fixed extended position and aesthetic appearance.
Solution Approach 2:
The foot peg can be nested within or flush against the bracket when in the retracted position, creating a compact integrated appearance. When extended, it protrudes for use. This nesting capability allows the peg to disappear into the bracket structure when not in use, resolving the aesthetic contradiction.
2Ease of operation
If the foot peg is fixed in an extended position, then rider comfort is improved, but safety is worsened during slides or crashes due to potential injury from rigid contact with ground
Solution Approach 1:
The foot peg transitions from a static fixed position to a dynamic rotatable position, allowing it to retract automatically during slides or crashes. This dynamic response provides safety by removing the rigid protruding element that could cause injury, while maintaining comfort during normal riding when extended.
Solution Approach 2:
The system preemptively addresses safety concerns by designing the peg to be retractable, so that in the event of a slide or crash, the peg can automatically retract to prevent injury. This preliminary design consideration resolves the safety contradiction before accidents occur.
3Adaptability or versatility
If multiple adjustment positions are provided, then adaptability to different riders is improved, but device complexity increases due to additional mechanisms
Solution Approach 1:
The bracket is segmented with multiple discrete openings at different positions, allowing the foot peg to be adjusted to various locations. This segmentation provides adaptability for different riders without requiring complex continuous adjustment mechanisms, resolving the contradiction between adjustability and simplicity.
Solution Approach 2:
The foot peg incorporates a rotatable joint that allows dynamic positioning between retracted and extended orientations. This simple rotational mechanism provides adaptability for different riding positions and rider preferences without adding complex adjustment systems.
4Shape
If the foot peg is made retractable, then aesthetic appearance and safety are improved, but ease of operation worsens due to additional effort required to extend and retract
Solution Approach 1:
The foot peg is designed with a biasing member that automatically returns the peg to its retracted position after use. This self-service mechanism reduces the effort required by the rider, as they only need to apply force to extend the peg, while retraction occurs automatically, resolving the contradiction between aesthetics and operation effort.
Solution Approach 2:
A biasing member (spring mechanism) is introduced to replace manual retraction effort with automatic mechanical assistance. The spring provides the force needed to return the peg to its aesthetic retracted position, reducing the operational burden on the rider while maintaining the aesthetic benefit.
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 system provides improved rider comfort and safety by allowing customizable installation, easy operation between extended and retracted orientations, and automatic retraction upon contact with the ground, maintaining a flush appearance when not in use.
Implementation Method 1
The biasing member may be operatively connected to the bracket and/or the peg. The biasing member may act upon the peg to retain the peg in its present orientation, retracted or extended.
Data Source
AI summary
A retractable peg system for a motorcycle including a bracket operatively attachable the motorcycle and a peg rotatably coupled to the bracket and rotatable between a retracted safe storage orientation and an extended use orientation. In the extended orientation, the peg is disposed such that a rider may rest a foot on the peg while seated. The retractable peg system further includes a biasing member to substantially maintain the orientation of the peg in its presently retracted or extended orientation absent application of an external force acting on the peg. The components of the retractable peg system may be configured to provide a visually integrated appearance in relation to the motorcycle.


