Bicycle Seat Positioning via Directing Rod Mechanism
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Solution Overview
Problem
Existing exercise equipment, such as bicycles, often require separate devices for upright and recumbent positions, which can limit user versatility and increase the risk of injury due to prolonged use on a single type of device.
Innovation Solution
A bicycle device with a mechanism allowing the seat to be adjusted between upright and recumbent positions using a directing rod with linear or circular movement, or through multiple bores for seat insertion, enabling the same device to function as both upright and recumbent bicycles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate upright and recumbent bicycle devices are used, then user versatility for different muscle groups is improved, but device complexity and space requirements increase
Solution Approach 1:
The bicycle device is designed to perform multiple functions by allowing the seat to be positioned in different configurations. The same basic bicycle structure can be used for both upright and recumbent exercise modes, eliminating the need for separate devices for different muscle group training
Solution Approach 2:
The seat positioning system allows dynamic reconfiguration of the bicycle device. The directing rod mechanism enables the seat to move between fixed positions, transforming the device from a static single-function configuration to a dynamic multi-function system that adapts to different exercise requirements
2Device complexity
If a single bicycle device is used for both upright and recumbent positions, then device complexity is reduced, but the ability to maintain proper seat-to-pedal distance for both positions becomes difficult
Solution Approach 1:
The directing rod mechanism pre-establishes correct seat-to-pedal distances for both upright and recumbent positions through its fixed geometric configuration. When the seat is positioned at the front for upright cycling or at the rear for recumbent cycling, the rod automatically maintains the proper distance and angle relationship, eliminating the need for complex real-time adjustments
Solution Approach 2:
The directing rod acts as an intermediary mechanical element that transfers and maintains the correct spatial relationship between the seat and pedals. This rigid connector ensures that regardless of which position the seat occupies, the geometric relationship required for proper ergonomics is preserved
3Device complexity
If the seat is fixed in one position, then device simplicity is maintained, but user adaptability for different exercise types is limited
Solution Approach 1:
The seat assembly is segmented from the main bicycle frame through the directing rod connection. This allows the seat to be independently positioned at different locations while the rest of the bicycle remains unchanged, enabling multiple exercise modes without complicating the overall device structure
Solution Approach 2:
The system transitions from a static fixed-seat design to a dynamic reconfigurable design. The directing rod enables the seat to occupy different positions (front for upright, rear for recumbent) while maintaining structural simplicity, allowing the device to adapt to different exercise requirements
Data Source
AI summary
The subject matter discloses a bicycle device capable of functioning as an upright bicycle and a recumbent bicycle using one seat. The bicycle device according may comprise a seat, a body, a wheel operated by the user of the exercising device and a directing rod connecting the body and the seat. Such that movement of the directing rod allows positioning the seat in front position used for upright bicycle and rear position used for recumbent bicycle.