Dropper Seatpost Travel Adjustment via External Radial Insert
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Solution Overview
Problem
Existing dropper seatpost assemblies require collar removal for travel adjustment, which can damage internal components, disturb factory grease, and allow debris ingress, and are not universally applicable to different seatpost designs.
Innovation Solution
A radial insert travel adjustable dropper seatpost assembly that allows external installation of travel adjusters without collar removal, using an upper seal retainer to maintain interaction between posts and featuring adjustable travel distances through radial inserts and interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If collar removal is used for travel adjustment, then travel distance can be modified, but internal components may be damaged and factory grease disturbed
Solution Approach 1:
The travel adjustment mechanism is segmented into separate modular components: a travel adjust insert with adjustment opening, a retainer, and a seatpost. This allows the insert to be independently installed through the adjustment opening without removing the collar, preserving the integrity of internal components while enabling travel modification.
Solution Approach 2:
The travel adjust insert acts as an intermediary component between the upper and lower posts. It includes a body with an adjustment opening that receives a travel adjuster, allowing travel modification without direct manipulation of the collar or internal grease areas. The insert serves as a mediator that enables adjustment while protecting internal components.
2Ease of operation
If collar removal is used for travel adjustment, then travel distance can be modified, but debris may ingress into the seatpost
Solution Approach 1:
The travel adjust insert is pre-installed through the adjustment opening before the collar is removed or manipulated. This preliminary action ensures that the adjustment mechanism is in place and protected, preventing debris from ingressing into the seatpost during the adjustment process.
Solution Approach 2:
The travel adjust insert with its adjustment opening serves as a protected intermediary pathway. The opening is specifically designed to receive the travel adjuster while the insert body and retainer maintain protection against debris, allowing adjustment without exposing internal components to contaminants.
3Ease of operation
If traditional travel adjustment mechanism is used, then travel distance can be adjusted, but the mechanism is not universally applicable to different seatpost designs
Solution Approach 1:
The travel adjust insert is designed with universal applicability through its standardized adjustment opening and retainer mechanism. The insert can be installed on various seatpost designs with different configurations, making the travel adjustment capability universally applicable across different seatpost types while maintaining ease of operation.
Data Source
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AI summary
A radial insert travel adjustable dropper seatpost assembly (500) comprising: a lower post (515), said lower post (515) comprising a travel adjustment opening (525) therethrough; an upper post (510) configured to interactively operate with respect to said lower post (515), said upper post (515) comprising a travel adjust interface (555); and at least one radial travel adjust insert (530) installed from an exterior of said lower post (515) and within said travel adjustment opening (525), said at least one radial travel adjust insert (530) to interact with said travel adjust interface (555) of said upper post (510) to reduce a travel distance of said interactive operation of said upper post (510) with respect to said lower post (515).