Rotating Bicycle Carrier Locking for One-Hand Position Switching
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Solution Overview
Problem
Conventional bicycle carriers are complex, difficult to operate, and prone to damage due to their cumbersome control mechanisms and structure, which complicates the switching between vertical and horizontal fixing positions, affecting safety and ease of use.
Innovation Solution
A bicycle carrier design featuring a fixing device with a connection rod and positioning seat, a rotation device with a casing and grip, and a control device comprising an actuation post, pull lever, spring, and insertion portion, allowing for easy operation by rotating between horizontal and vertical fixing positions using a single hand, reducing complexity and fabrication costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the control element is arranged away from the rotatable connection position to be operated easily, then the ease of operation is improved, but the structure becomes complicated with more components and higher risk of damage
Solution Approach 1:
The control element is integrated directly at the rotatable connection position between the rotation assembly and the fixer, merging the control function with the structural connection point. This eliminates the need for separate control mechanisms and reduces component count while maintaining ease of operation through direct manual manipulation at the connection joint.
Solution Approach 2:
The rotatable connection position itself serves as the control mechanism, where the user's manual manipulation of the connection joint directly controls the rotation and locking states. The structure serves its own control function without requiring additional dedicated control components, simplifying the overall system.
2Ease of operation
If the conventional bicycle carrier is fixed on the roof of the vehicle, then the ease of operation is improved, but the driving safety deteriorates due to high height
Solution Approach 1:
The bicycle carrier is designed with a rotatable connection assembly that allows dynamic repositioning between vertical (high) and horizontal (low) fixing positions. This dynamic adjustment capability enables the carrier to adapt its height based on operational needs, providing ease of operation when vertical and driving safety when horizontal, thereby resolving the safety-height contradiction.
3Ease of operation
If the control element is switched from rotating movement to linear movement, then the ease of operation is improved, but the structure becomes complicated with more related components
Solution Approach 1:
Instead of converting rotational control to linear movement as conventional designs do, this invention inverts the approach by utilizing the natural rotational capability of the connection assembly as the control mechanism. The user rotates the connection joint directly to control the carrier's position, eliminating the need for complex conversion mechanisms while maintaining operational simplicity.
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 simplifies the operation and assembly of the bicycle carrier, enhances safety by adjusting the carrier's height, and reduces the risk of damage, enabling easy one-handed switching between fixing positions while maintaining safety and reducing costs.
Implementation Method 1
The spring abuts against the joining portion and the rotation device
Data Source
AI summary
A bicycle carrier contains: a fixing device, a rotation device, a control device, and a holder. The fixing device includes a connection rod and a positioning seat. The positioning seat has a longitudinal receiving orifice and a lateral receiving orifice. The rotation device includes a casing, a grip, and a grasp space. The control device includes an actuation post, a pull lever, a spring, and an insertion portion. The pull lever has a joining portion and an extension. When the extension is pulled by an external force, the insertion portion removes from the longitudinal receiving orifice and the lateral receiving orifice so that the rotation device is forced to rotate between a horizontal fixing position and a horizontal fixing position reciprocately. When the external force to the extension disappears, the rotation device is located on the vertical fixing position, and the insertion portion is received in the vertical receiving orifice.