Kickstand Pivot Mounting for Torque Distribution and Bending Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing kickstands for bicycles, electric bicycles, motorcycles, and mopeds face challenges in maintaining stability and preventing bending due to the weight and momentum of the vehicle, especially when transitioning from a parked to a moving state.
Innovation Solution
A kickstand device with a pivotable member that pivots between a ground-engaging position to maintain upright orientation and a non-engaging position for storage, featuring a mount portion with mount locations fore and aft of the pivot axis to distribute torque and prevent bending, using a pivot connection and coil tension spring for stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single mount location is used for the kickstand, then the device complexity is reduced, but the mount portion bends under torque from vehicle weight and momentum
Solution Approach 1:
The mount portion is divided into multiple mount locations (first mount location and second mount location) instead of using a single mounting point. This segmentation distributes the torque load across multiple attachment points to the vehicle frame, preventing bending while maintaining structural simplicity
Solution Approach 2:
The mounting system transitions from a single-point (0D) or line (1D) connection to a distributed multi-point connection in three-dimensional space. The mount locations are positioned at different spatial coordinates (fore and aft of the pivot axis), creating a more robust dimensional distribution of forces
2Ease of operation
If the kickstand uses a simple pivot connection, then the ease of operation is improved, but the stability is insufficient to prevent mount portion bending
Solution Approach 1:
The pivot connection incorporates a coil tension spring that provides localized elastic restoration force at the pivot joint. This local quality enhancement maintains the simplicity of pivot-based operation while adding the reliability needed to prevent mount portion bending through controlled mechanical feedback
3Strength
If the kickstand is designed to support heavy vehicle weight, then the strength is improved, but the device complexity increases due to additional components
Solution Approach 1:
The kickstand employs a dynamic pivot connection with a coil tension spring instead of a rigid fixed connection. This dynamic element allows the system to adapt to varying loads (vehicle weight, momentum forces) while maintaining structural integrity, achieving high strength without requiring multiple complex rigid support 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 kickstand effectively maintains the vehicle's upright position and prevents bending of the mount portion by distributing torque across multiple mount locations, ensuring stability during transitions and parked conditions.
Implementation Method 1
using a pivot connection and coil tension spring for stability
Data Source
AI summary
A kickstand device is provided that includes a mount portion for attachment to a wheeled implement and a pivotable member pivotally connected to the mount portion. The pivotable member is pivotable about a pivot axis between a first position to engage ground and retain the wheeled implement in an upright orientation and a second position away from ground engagement. The pivotable member transfers a torque to the mount portion when pivoting about the pivot axis from the second position to the first position.