Programmable Bicycle Seat Post With Smooth Height Positioning
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Solution Overview
Problem
Conventional dropper seat posts for bicycles require riders to stop and dismount to adjust seat height, leading to inconvenient and unpleasant riding experiences, especially for racers, due to lag time and abrupt arrival at desired positions, and they often suffer from play between the seat post and tube, causing rotation and vague feedback.
Innovation Solution
An adjustable seat post system that allows programmable height adjustments via a user interface, using a valve assembly and bushing design to control fluid flow and prevent rotation, enabling smooth, gentle transitions between positions, and incorporating a controller for real-time adjustments based on rider input and terrain data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional dropper seat posts are used, then seat height can be adjusted, but riders must stop and dismount to adjust, causing lag time and interrupting riding flow
Solution Approach 1:
The patent replaces the conventional mechanical cable-actuated system with an electric motor-driven system. The motor is controlled by a remote switch mounted on the handlebar, allowing riders to adjust seat height while riding without stopping. This substitution of mechanical actuation with an electric system enables continuous riding while maintaining adjustment capability.
Solution Approach 2:
The patent introduces a remote control switch as an intermediary device mounted on the handlebar. This intermediary allows the rider to transmit adjustment commands from the handlebar location to the seat post mechanism, eliminating the need to dismount and providing intuitive control during riding.
2Ease of operation
If conventional dropper seat posts are used, then seat height can be adjusted, but the arrival at desired positions is abrupt, causing vibration and discomfort
Solution Approach 1:
The patent employs a step-by-step adjustment mechanism where the motor moves the seat post incrementally rather than all at once. The adjustment occurs in multiple small steps, allowing the system to gently arrive at the desired position and reduce abrupt movements and vibrations that cause rider discomfort.
3Adaptability or versatility
If conventional dropper seat posts are used, then seat height can be adjusted, but play between seat post and tube causes rotation and vague feedback
Solution Approach 1:
The patent incorporates a bushing mechanism that dynamically adapts to the seat post position. The bushing maintains frictional contact between the seat post and the tube, providing continuous stabilization that prevents rotation and eliminates play. This dynamic friction-based system ensures the seat post remains stable at any adjusted position while maintaining the ability to move when actuated.
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
Enables seamless height adjustments during riding, reducing lag and vibration, eliminating play-induced rotation, and providing a stable, intuitive riding experience by allowing precise control over seat post height through electronic and mechanical mechanisms.
Implementation Method 1
a valve assembly and bushing design to control fluid flow
Implementation Method 2
bushing design to control fluid flow and prevent rotation
Data Source
AI summary
A system including: a seat post; a user interface operatively connected with the seat post, the user interface configured for receiving instructions associated with a height of the seat post and for communicating received instructions to at least one controller coupled with a motive source of the seat post; and a valve assembly in communication with the motive source, the valve assembly regulating fluid flow within a variable finite positioning seat post height mode in response to a translation of the received instructions by the motive source.