Telescopic Seatpost Coupling for Adjustable Extension Limits
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Solution Overview
Problem
Existing telescopic seatposts require complex machining and may compromise strength due to radial grooves, and their adjustment mechanisms are intertwined, limiting flexibility in setting the maximum longitudinal extent and saddle height adaptation.
Innovation Solution
A telescopic seatpost with a coupling device and adjustment mechanism that allows independent adjustment of the maximum longitudinal extent, featuring a blocking device for controlled telescopic movement, and a coupling mechanism that transmits axial forces between the telescopic and support units, enabling multiple settings and improved strength through a profiled notching system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If radial grooves are provided in the telescopic element for cooperation with the latching element and arresting device, then the telescopic seatpost achieves adjustable positioning and blocking functions, but the machining complexity and production expenditure increase significantly
Solution Approach 1:
The patent extracts the functional requirement of positioning and blocking from the telescopic element itself and relocates it to the support element. The support element now carries the profiled notching that cooperates with the latching element and arresting device, while the telescopic element becomes a simple smooth tube. This extraction eliminates the need for complex radial grooves in the telescopic element, significantly reducing machining complexity while preserving all positioning and blocking functions.
2Ease of operation
If the telescopic element is configured with radial grooves for the latching element and arresting device, then positioning and blocking functions are achieved, but the strength of the telescopic element is compromised
Solution Approach 1:
The patent relocates the profiled notching from the telescopic element to the support element. This extraction removes the strength-compromising radial grooves from the telescopic element, allowing it to be manufactured as a smooth, high-strength tube. The positioning function is fully preserved through the profiled notching in the support element, which engages with the latching element and arresting device in the same manner.
3Ease of operation
If the latching element and arresting device are configured to cooperate with radial grooves in the telescopic element, then adjustable positioning is achieved, but the configuration of these components is constrained and tied to the groove design
Solution Approach 1:
The patent extracts the profiled notching from the telescopic element and places it in the support element. This relocation decouples the configuration of the latching element and arresting device from the telescopic element design. The latching element and arresting device now interact with the profiled notching in the support element, allowing for greater design flexibility and independence in configuring these components without being constrained by radial groove requirements in the telescopic element.
4Adaptability or versatility
If the maximum longitudinal extent of the seatpost is adjusted by modifying the telescopic element configuration, then saddle height adaptation is achieved, but the same configuration constraints apply to the latching element and arresting device
Solution Approach 1:
The patent extracts the profiled notching from the telescopic element and relocates it to the support element. This enables independent adjustment of the maximum longitudinal extent of the seatpost by modifying only the support element or coupling device, without being constrained by the need to redesign the telescopic element with new radial groove patterns. The latching element and arresting device configurations remain independent and are not tied to specific telescopic element groove designs.
Data Source
AI summary
A telescopic saddle support for supporting a bicycle saddle includes a support unit to be secured on or in the frame of a bicycle; a telescoping unit to be moved in a guided manner relative to the support unit within a specified telescoping range, the telescoping range extending from a minimum length of the saddle support to a maximum length of the saddle support; and a coupling device arranged between the telescoping unit and the support unit. A coupling device part which is paired with the support unit is connected to the support unit in a fixed manner, and the telescoping unit can be coupled to the support unit via the coupling device. A blocking device releasably blocks the guided telescoping movement of the telescoping unit relative to the support unit. The coupling device has an adjustment mechanism via which the maximum length of the saddle support can be adjusted, an axial force which acts on the telescoping unit being transmitted to the support unit via the coupling device.