Adjustable Bicycle Seatpost With High-Low Height Actuation
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Solution Overview
Problem
Existing bicycle seatpost arrangements fail to provide easy and efficient adjustment between optimal saddle heights for pedaling efficiency and technical control, often requiring disruptive rider input during transitions.
Innovation Solution
An adjustable seatpost assembly with a height change mechanism that allows users to switch between high and low saddle positions using a button or switch, incorporating mechanical or electrical actuation systems for seamless transitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fixed seatpost arrangement is used to maintain optimal saddle height for pedaling efficiency, then pedaling efficiency is improved, but rider control during technical maneuvers deteriorates
Solution Approach 1:
The seatpost arrangement transitions from a fixed static configuration to a dynamic adjustable system. The saddle height can be changed from a fixed position to multiple adjustable positions (high and low) through an actuation mechanism, allowing the system to adapt to different riding conditions and maintain both pedaling efficiency and technical control as needed.
2Adaptability or versatility
If an adjustable seatpost arrangement is provided to enable saddle height changes, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent replaces complex traditional mechanical adjustment mechanisms (such as cables, linkages, or manual release systems) with an actuation assembly that can be operated more simply. The actuation assembly includes components that translate rider input into saddle height changes through a simplified mechanical or electromechanical system, reducing overall device complexity while maintaining adjustability.
3Ease of manufacture
If manual adjustment mechanisms are used for seatpost height changes, then ease of manufacture is improved, but ease of operation deteriorates due to disruptive rider input
Solution Approach 1:
The actuation assembly is designed to be operated by the rider through simple input (such as squeezing a trigger or pressing a button) without requiring complex manual manipulation. The system serves itself by converting this simple rider input into the necessary mechanical action for height adjustment, minimizing disruption to the rider's flow and making operation as easy as possible while maintaining manufacturing simplicity.
Data Source
AI summary
A seatpost assembly may generally include a lower post and an upper post movable relative to the lower post. The upper post is movable relative to the lower post between a high position and a low position. An actuation assembly is configured to receive a user input. A height change assembly is provided in conjunction with the actuation assembly. The height change assembly is operable to drive the upper post to the high position and to drive the upper post to the low position. The height change assembly may be operable responsive to receiving the user input and to drive the upper post to the low position responsive to receiving the user input.