Adjustable Bicycle Seat With Rotating Width Mechanism
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Solution Overview
Problem
Conventional bicycle saddles are not adjustable, leading to discomfort due to fixed contours that do not fit various user body sizes, and existing adjustable designs lack a secure and rigid configuration for mass production, making them impractical for market use.
Innovation Solution
An adjustable seat assembly that allows the distance between two seat bodies to be adjusted via a rotation-based mechanism, featuring a secure locking system and a triangular linkage mechanism for balanced and secure movement, which can be integrated with existing bicycle seats without altering their design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed contour bicycle saddle is used, then the manufacturing cost is low and the structure is simple, but the comfort level is poor for users with different body sizes
Solution Approach 1:
The bicycle saddle is divided into a saddle base and two saddle portions (first and second saddle portions) that can move independently relative to the base. This segmentation allows each portion to be adjusted separately to accommodate different user body sizes and preferences, while the base provides structural support. The segmentation enables adaptability without requiring a completely complex redesign of the entire saddle structure.
Solution Approach 2:
The saddle portions are designed to be movable rather than fixed, allowing dynamic adjustment of the saddle width and contour. The movable portions can be positioned at different locations relative to the saddle base to change the effective transverse width, providing adaptability to different users while maintaining a relatively simple overall structure through controlled dynamic elements.
2Adaptability or versatility
If an adjustable bicycle saddle with movable portions is provided, then the adaptability to different users is improved, but the structural stability and rigidity deteriorate
Solution Approach 1:
By segmenting the saddle into a stable base and movable portions, the invention isolates the adjustment mechanism to specific components while maintaining the structural integrity of the base. The base provides a stable foundation that does not move, ensuring structural stability, while the segmented portions can be adjusted independently without compromising the overall structural composition.
Solution Approach 2:
The invention uses identical first and second saddle portions that are mirror images of each other, providing symmetry and balance. This copying approach ensures that when the saddle portions are adjusted to different positions, the structural load is distributed evenly, maintaining stability while achieving adjustability.
3Ease of operation
If threaded shafts are coaxially extended in recesses for adjustment, then the adjustment mechanism is simple, but the configuration becomes loose and allows unwanted movement
Solution Approach 1:
Instead of extending the threaded shafts coaxially within the recesses as in conventional designs, the invention inverts the configuration by having the threaded shafts extend transversely (perpendicularly) to the recesses. This inverted arrangement allows the control element to be securely mounted with the shafts passing through the recesses at right angles, preventing unwanted movement while maintaining ease of adjustment through the threading mechanism.
Solution Approach 2:
The invention introduces a control element as an intermediary component that connects the threaded shafts to the adjustable saddle portions. This control element serves as a mediator that secures the shafts in place while allowing controlled movement for adjustment, and provides a user interface for operating the adjustment mechanism. The control element ensures reliable connection while maintaining ease of operation.
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 solution provides a comfortable and secure adjustable seat that fits different user sizes, ensuring a rigid and stable configuration, suitable for mass production, and can be customized to individual body sizes during production, enhancing user comfort and safety.
Implementation Method 1
an adjustor linked with the first and second adjustable members, wherein the adjustor is configured to be driven to rotate at a rotatable direction along a centerline of the adjustment channel to selectively adjust a width of the adjustment channel
Data Source
AI summary
An adjustable seat includes a seat frame and an adjustable assembly. The seat frame includes a first seat body and a second seat body spaced apart each other to define an adjustment channel between the first and second seat bodies. The adjustable assembly, which supported underneath the seat frame and configured to selectively adjust a distance between the first and second seat bodies, includes an adjustor and first and second adjustable members coupled at the first and second seat bodies respectively and aligned with each other. The adjustor is linked with the first and second adjustable members and configured to be driven to rotate at a rotatable direction along a centerline of the adjustment channel to selectively adjust a width of the adjustment channel so as to selectively adjust the distance between the first and second seat bodies.