Bicycle Trainer With Tilting Handlebar Assembly
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Solution Overview
Problem
Existing exercise devices, such as stationary bikes, fail to replicate the natural side-to-side motion and steering experience of actual bicycle riding, leading to an unsatisfactory feel for frequent bicyclists due to the lack of sideways motion.
Innovation Solution
A bicycle trainer assembly that includes a rear and front frame with a handlebar mount and seat mount, allowing for fore and aft movement, and featuring a pedaling resistance mechanism with rubber bands and a fluid pressure cylinder to mimic the natural tilting and steering of a bicycle, enabling realistic side-to-side motion and resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a stationary bike provides fixed handlebar and frame positioning, then structural stability is improved, but the natural side-to-side motion and steering experience of actual bicycle riding is lost
Solution Approach 1:
The patent applies dynamics by making the handlebar assembly and frame movable rather than fixed. The handlebar is rotatably engaged to the frame, allowing it to turn side-to-side, while the entire assembly can tilt laterally on the base. This dynamic design replicates the natural motions of actual bicycle riding while maintaining structural stability through controlled mechanical joints and resistance mechanisms.
Solution Approach 2:
The patent segments the bicycle trainer into distinct movable components: the base assembly, the frame assembly, the handlebar assembly, and the seat assembly. Each segment can move independently - the base permits fore-and-aft and lateral motion, the frame tilts on the base, and the handlebar rotates on the frame. This segmentation allows each part to contribute to the overall realistic riding experience while maintaining individual structural integrity.
2Ease of manufacture
If the handlebar is fixed in position, then ease of manufacture is improved, but the ability to replicate natural steering motion is worsened
Solution Approach 1:
The handlebar assembly is designed with rotational capability through a post that is rotatably engaged to the frame. This dynamic connection allows the handlebar to turn side-to-side naturally, replicating real bicycle steering motion, while the manufacturing process remains relatively simple using standard mechanical joints and mounting mechanisms.
3Device complexity
If the frame is fixed relative to the base, then device complexity is reduced, but the ability to mimic natural bicycle tilting motion is lost
Solution Approach 1:
The frame assembly is designed to tilt laterally relative to the base through a pivot connection. This dynamic relationship allows the frame to lean into turns and replicate the natural tilting motion of actual bicycle riding. The mechanism uses simple pivot joints and gravitational forces rather than complex active control systems, maintaining relatively low device complexity while achieving the desired adaptability.
Data Source
AI summary
A bicycle trainer, including a base, permitting fore and aft movement and a frame, supported by the base. Also, a seat and a handlebar assembly and a pedaling assembly is supported by the frame. The handlebar assembly is rotatably engaged to the frame, and is supported by a tongue, that is hinged to the base so as to permit horizontal rotation, and the handlebar assembly is attached to the tongue at a position removed from the hinge. Turning the handlebars causes the frame to move laterally.