Quick-Coupling Bicycle Motorization Kit for Theft Reduction
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Solution Overview
Problem
Electric bicycles are expensive and prone to theft, with the drive unit being the most valuable part that remains associated with the bicycle, leading to significant damage upon theft even without the battery pack.
Innovation Solution
A motorization kit for bicycles that allows easy detachment of the drive unit from the frame using a quick coupling mechanism, incorporating a fixing frame that mimics the bicycle's profile and uses elastic means for secure attachment, enabling tool-free detachment and reattachment with one hand, and includes a rechargeable system utilizing kinetic energy and solar power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the drive unit is permanently associated with the bicycle frame, then the bicycle maintains structural integrity and reliability, but the bicycle becomes an attractive target for theft and causes significant financial loss
Solution Approach 1:
The drive unit is segmented from the bicycle frame through a detachable connection system. The fixing frame is mounted to the bicycle frame, while the drive unit can be detached from the fixing frame, allowing the expensive components to be separated from the bicycle for secure storage while leaving only the lightweight fixing frame attached.
Solution Approach 2:
The valuable drive unit components (motor, battery, controller) are extracted from the permanent bicycle structure and placed in a removable drive unit assembly. This allows the expensive parts to be taken out and stored separately, reducing the theft value of the bicycle itself.
2Object-affected harmful factors
If the drive unit is made detachable to reduce theft risk, then financial loss is minimized, but the connection and detachment mechanisms add device complexity
Solution Approach 1:
The connection system transitions from a static permanent attachment to a dynamic detachable system. The fixing frame provides stable mounting when attached, while allowing quick detachment when needed, adapting the connection state based on security requirements.
Solution Approach 2:
The fixing frame acts as an intermediary element between the bicycle frame and the drive unit. It provides the connection interface with resolvable connection means (quick release mechanisms, locking systems) that enable secure attachment and easy detachment without requiring complex tools or procedures.
3Reliability
If traditional permanent motorization systems are used, then the bicycle has reliable electric propulsion, but the system cannot be easily transferred to different bicycles and has high theft risk
Solution Approach 1:
The drive unit is designed as a universal assembly that can be mounted on different bicycle frames through the fixing frame interface. The same drive unit can be transferred between bicycles, making the expensive components multi-functional and adaptable to various bicycle types and owners.
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 kit enables easy conversion of traditional bicycles to electric bicycles, reduces theft risk by separating the expensive drive unit, and allows partial battery recharging through pedaling or downhill motion, making it less attractive to thieves and minimizing financial loss.
Implementation Method 1
a motor (4) which moves in rotation the same at least one roller (6)
Implementation Method 2
elastic means for locking the sliding are provided between the frame for fastening to the bicycle and the body containing the motorization means
Implementation Method 3
the possibility of at least partial recharging of the battery by exploiting by transforming the kinetic energy determined by a downhill path and / or by the intervention of the pedals
Data Source
Figure 1~5
Figure 6~7
Figure 8~11
AI summary
The invention relates to a kit (1) for motorizing a bicycle which is provided with a particular quick coupling that allows its installation and removal in extremely short times, allowing the movement and use of the entire device even on other bicycles previously equipped with a similar quick coupling.