Telescopic Seatpost With Elastic Support and Push-Back Damping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current mechanical telescopic seatposts experience rapid descent due to insufficient elastic support, causing discomfort and excessive impact on the rider, while hydraulic types are costly.
Innovation Solution
A telescopic seatpost design incorporating a deceleration module and elastic member to control the press-down and push-back speeds, providing damping effects and resistance to adjust the seat height smoothly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the elastic coefficient of the elastic member is increased to provide sufficient supporting elastic force, then the supporting force is improved, but the push-back speed becomes excessively high causing collision with the user
Solution Approach 1:
The patent divides the force control function into two independent components: the elastic member provides supporting elastic force, while the damping member independently controls the push-back speed. This segmentation allows each component to be optimized for its specific function without compromising the other, resolving the contradiction between force and speed control
Solution Approach 2:
The damping member acts as an intermediary between the elastic member and the seat tube, mediating the push-back action by controlling the speed at which the elastic force is transmitted. This intermediary component allows the elastic member to maintain high elastic coefficient while preventing excessive push-back speed through controlled damping
2Speed
If the elastic coefficient of the elastic member is decreased to reduce push-back speed, then the push-back speed is improved, but the supporting elastic force becomes insufficient causing rapid descent
Solution Approach 1:
The patent separates the functions of speed control and force support into distinct components: the damping member handles speed control while the elastic member provides force support. This allows the elastic member to have a high elastic coefficient for sufficient supporting force without causing rapid push-back, as the damping member independently regulates the speed
Solution Approach 2:
The damping member serves as an intermediary that allows the elastic member to maintain high elastic coefficient while controlling the transmission speed of the push-back force, preventing both rapid descent and excessive push-back speed simultaneously
3Ease of operation
If hydraulic type telescopic seatpost is used to achieve arbitrary adjustment and damping, then the adjustment flexibility and damping performance are improved, but the manufacturing cost increases significantly
Solution Approach 1:
The patent replaces the hydraulic system with a purely mechanical configuration consisting of an elastic member and a damping member. This mechanical substitution eliminates the need for complex hydraulic components (pumps, reservoirs, seals) while achieving comparable adjustment flexibility and damping performance, significantly reducing manufacturing cost
Solution Approach 2:
The patent uses simple, inexpensive mechanical components (elastic member and damping member) instead of expensive hydraulic systems. These components are easier and cheaper to manufacture, maintain, and replace, providing a cost-effective alternative that maintains functional performance
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 design reduces the speed of seat tube descent and ascent, enhancing the riding experience by minimizing impact and collision risks, while maintaining smooth operation.
Implementation Method 1
the elastic member is sleeved on the connecting seat and the deceleration module... When the seat tube slides relative to the support tube along a second direction opposite to the first direction to switch to an extension mode, the elastic member elastically recovers to push the connecting seat
Implementation Method 2
When the seat tube slides relative to the support tube along a first direction to switch to a compression mode, the seat tube and the deceleration module interfere with each other to increase a press-down resistance... During a process in which the telescopic seatpost is switched to the extension mode, the seat tube and the deceleration module interfere with each other to increase a push-back resistance
Data Source
AI summary
A telescopic seatpost including a support tube, a seat tube, a connecting seat, a deceleration module, an elastic member, a first outer tube, and a second outer tube. The seat tube is slidably disposed in the support tube. The connecting seat is connected to an end of the seat tube away from the support tube. The deceleration module is connected to the support tube and sleeved on the seat tube. The elastic member is disposed on the connecting seat and the deceleration module and is spaced apart from the seat tube. A part of the elastic member presses down the deceleration module along a normal direction.