Adjustable Pedal Generator for Multi-Track Cycle
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Solution Overview
Problem
Conventional bicycles face issues such as lack of protection, inefficient aerodynamics, instability on low-friction surfaces, and space constraints due to the need for a narrow turning radius, which limits their adoption as a sustainable transportation mode.
Innovation Solution
A multi-track cycle with a pedal generator system featuring an adjustable pedal position mechanism, a single synchronous belt for efficient energy transfer, and a low-positioned generator to minimize weight and maximize stability, while maintaining a compact footprint suitable for existing infrastructure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the width between wheels on the same axle is increased to reduce air resistance, then the frontal area and air friction coefficient are reduced, but the turning circle of the vehicle becomes excessively large
Solution Approach 1:
The patent applies dynamics by making the pedal position adjustable rather than fixed. The pedal generator frame can be positioned at different locations along the base frame, allowing the pedal width to be dynamically adjusted based on operating conditions. This enables optimization of both air resistance (by increasing pedal width when possible) and turning circle (by reducing pedal width when maneuverability is needed).
Solution Approach 2:
The patent changes the parameter of pedal position and width dynamically. The pedal generator assembly can be repositioned along the base frame to alter the effective width between pedals, thereby changing the vehicle's aerodynamic profile and turning characteristics according to operational requirements.
2Ease of operation
If the pedals are positioned close together to reduce turning circle, then the turning circle is minimized, but the space required for pedalling interferes with the space required for front wheels and their possibility for turning
Solution Approach 1:
The patent makes the pedal position dynamic and adjustable along the base frame. This allows the system to adapt between configurations: when tight turning is needed, pedals are positioned closer together; when wheel turning space is needed, pedals are repositioned to allow greater wheel articulation room.
Solution Approach 2:
The adjustable pedal generator frame serves multiple functions: it provides structural support for the generator, accommodates pedal positioning for different rider preferences, and enables configuration changes to balance between turning circle and wheel space requirements depending on operational context.
3Stability of the object's composition
If the generator is positioned as low as possible to minimize mass and keep centre of gravity low, then stability is optimized, but the mechanical connection must be firm to prevent energy loss from bending and stretching
Solution Approach 1:
The patent segments the connection system into multiple components: the pedal generator frame, connection points, and attachment mechanisms to the base frame. This segmentation allows the generator to be positioned low for stability while using rigid, dedicated connection structures that prevent energy loss from deformation.
Solution Approach 2:
The patent employs curved or angled reinforcement elements in the connection structure between the generator and base frame. These curved reinforcements distribute stresses more effectively and prevent bending and stretching at the connection points, reducing energy loss while maintaining the low position of the generator.
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 solution enhances pedaling efficiency, reduces energy loss, provides adjustable pedaling comfort for various riders, and optimizes protection, while maintaining a compact and stable design compatible with existing bicycle paths.
Implementation Method 1
a single synchronous belt for efficient energy transfer
Data Source
Figure 1~2
Figure 3~4
AI summary
It is described a pedal generator (100) for a multi-track cycle comprising a base frame (6), the pedal generator (100) comprising: - a set of pedals (1a, 1 b); - a generator (14) mechanically connected to the pedals (1a, 1b); - a frame (3) for fixing a position of the pedals (1 a, 1 b) and the generator (14) relative to each other, wherein the frame (3) is connectable to the base frame (6) by a first connection point (8) and a second connection point (4), wherein the first connection point (8) is a single fixing point connectable to the base frame (6) in alternative positions (10) being discrete or continuously variable, and a pivotal arm (5) connected to the second connection point (4) and the base frame (6).