Exercise Bike Frame Lifting Linkage for Low-Power Incline Adjustment
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Solution Overview
Problem
Conventional exercise bikes lack the sensation of incline, leading to user boredom and reduced motivation, and existing frame adjustment mechanisms consume excessive power and fail to achieve energy savings.
Innovation Solution
A frame lifting mechanism comprising a base, driving unit, and lifting unit, where the driving unit includes a speed reducer, motor, lead screw, transmission tube, sliding track, and sliding member, and the lifting unit features a supporting shaft with oblique extension sections, allowing the frame to be adjusted with minimal power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a lifting motor device is used to adjust the frame angle, then the frame angle can be adjusted, but excessive power is consumed
Solution Approach 1:
The supporting shaft is designed with oblique extension sections that create a dynamic mechanical advantage system. As the sliding member moves along the sliding track, the oblique sections convert small linear movements into amplified rotational movements of the lifting member, enabling frame angle adjustment with minimal motor power while maintaining operational ease
Solution Approach 2:
The patent changes the geometric parameters of the supporting shaft by creating oblique extension sections with specific angles. This parameter modification transforms the mechanical system to achieve greater output movement for a given input movement, reducing the power required for frame angle adjustment while preserving ease of operation
2Adaptability or versatility
If the frame angle is fixed, then the structure is simple, but the user cannot experience incline sensation
Solution Approach 1:
The supporting shaft is segmented into multiple sections including first and second oblique extension sections connected at an angle. This segmentation allows each section to perform a specific function in the mechanical advantage chain, enabling frame angle adjustment capability while keeping individual component structures relatively simple
Solution Approach 2:
The sliding member acts as an intermediary between the motor-driven transmission tube and the lifting member. It translates the linear motion from the transmission tube into motion that activates the oblique supporting shaft sections, which in turn drive the frame angle adjustment, adding versatility without significantly increasing overall structural complexity
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 mechanism effectively simulates real bicycle riding sensations while reducing energy consumption and enhancing operational performance by allowing swift angle adjustments with reduced motor power output.
Implementation Method 1
one end of the lead screw connected to the reducer. The transmission tube is fastened onto the lead screw and configured to be driven by the lead screw in order to move axially along the lead screw
Implementation Method 2
The sliding member is slidably installed on the sliding track and connected to one end of the transmission tube, thereby allowing the sliding member to be driven by the transmission shaft to move along the sliding track
Implementation Method 3
A rear end of the lifting member is pivotally attached onto the base... allowing the sliding member to be driven by the transmission shaft to move along the sliding track
Implementation Method 4
allowing the supporting shaft to drive the lifting member along with the frame secured onto the lifting member to be lifted upward or lowered downward
Data Source
AI summary
A frame lifting mechanism includes a base, a motor, a lead screw, a sliding member, a lifting member and a supporting shaft. The motor is connected to the lead screw, and the lead screw is fastened onto a transmission tube, allowing the transmission tube to move forward and backward while being driven by the lead screw. The sliding member is installed on a sliding track arranged on the base and connected to the transmission tube, allowing the sliding base to actuate with the transmission tube synchronously. A rear end of the lifting base is pivotally attached onto the base for support, and the supporting member uses its two top and bottom ends to be pivotally attached onto the lifting member and the sliding member respectively, allowing the supporting shaft to utilize the movement of the sliding member to drive the lifting member to move upward and downward.