Adjustable Pedal Rotation Brake for Jump Control
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Solution Overview
Problem
Existing bicycle pedals either allow unwanted rotation during jumps or require high friction, which is undesirable, and lack durability.
Innovation Solution
A pedal with an adjustable rotation brake integrated into the pedal body, allowing adjustment of braking force to prevent unwanted rotation while maintaining ease of pedaling as needed, featuring a threaded pin for external actuation and a slotted shaft sleeve for varying clamping force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If high friction is used to prevent pedal rotation during jumps, then pedal stability is improved, but pedaling effort increases significantly
Solution Approach 1:
The brake mechanism is designed to be adjustable, allowing the friction force to be dynamically changed based on riding conditions. The brake arm can be positioned at different locations along the pedal axle, and the spring force can be adjusted, enabling the system to provide high friction when needed (during jumps) and low friction during normal pedaling.
Solution Approach 2:
The braking force parameter can be modified by changing the position of the brake arm on the pedal axle or by adjusting the spring force. This allows the system to optimize the friction coefficient between the brake tongue and pedal axle according to the specific riding situation, providing high stability during jumps and low resistance during normal pedaling.
2Adaptability or versatility
If adjustable braking force is implemented, then adaptability to different riding conditions is improved, but device complexity increases
Solution Approach 1:
The brake mechanism serves multiple functions: it provides braking force during jumps, allows free rotation during normal pedaling, and can be adjusted for different riding conditions. The same brake arm and spring assembly handle both high-friction and low-friction requirements, making the system multi-functional without requiring separate mechanisms for different conditions.
Solution Approach 2:
The brake arm is designed as a separate, adjustable component that can be positioned at different locations along the pedal axle. This segmentation allows independent adjustment of the braking force without affecting other pedal components, simplifying the overall design while providing adaptability.
3Object-affected harmful factors
If the brake mechanism is integrated into the pedal body, then protection from dust and dirt is improved, but accessibility for adjustment decreases
Solution Approach 1:
The brake mechanism is nested within the pedal body structure, with the brake arm positioned inside the pedal housing. This nested arrangement protects the brake components from external contaminants while maintaining access to the adjustment mechanism through the pedal body, allowing users to adjust the brake position without removing 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 pedal effectively prevents unwanted rotation during jumps and allows easy pedaling uphill by adjusting braking force, while ensuring durability through protected and accessible brake mechanisms.
Implementation Method 1
an adjustable rotation brake that exerts an adjustable braking force on the pedal axle during rotation of the pedal body in order to slow the rotation of the pedal body
Implementation Method 2
The brake arm is spring-loaded into the first position
Data Source
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AI summary
The invention relates to a pedal (100) comprising a pedal body (110), a pedal axle (120) which extends at least partly through the pedal body (110), said pedal body (110) being rotatably mounted on the pedal axle (120), and an adjustable rotation brake (170) which exerts an adjustable braking force onto the pedal axle (120) during a rotation of the pedal body (110) in order to brake the rotation of the pedal body (110) in comparison to an unbraked rotation.