Folding Handlebar Structure with Elastic Self-Locking Mechanism
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Solution Overview
Problem
The existing dragon head adjustment structures on manual scooters often fail to securely fix the handlebar angle due to user forgetfulness, leading to hazardous sliding issues.
Innovation Solution
A folding structure for carrier's handlebar where the movability of the second joint is controlled by occluding teeth meshing with positioning teeth, and an elastic member ensures automatic meshing for secure angle adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a pin is inserted through the positioning hole and the fixing hole to pivotally connect the upper stem and the lower stem, then the dragon head can be adjusted and fixed in place, but the user often forgets to insert the pin, causing the dragon head to slide easily and creating safety hazards
Solution Approach 1:
The slider automatically meshes with the positioning teeth through the elastic member's restoring force, making the system self-securing without requiring user intervention to insert pins or triggers. The elastic member ensures the slider returns to the meshed position automatically after adjustment
Solution Approach 2:
The elastic member is pre-loaded to exert a restoring force that keeps the slider in the meshed position with the positioning teeth. This preliminary elastic force ensures the handlebar is automatically secured before the user even completes the adjustment motion
Solution Approach 3:
The elastic member acts as an intermediary between the slider and the positioning teeth, providing a continuous securing force that ensures the handlebar remains fixed without requiring direct user intervention with pins or triggers
2Ease of operation
If the dragon head adjustment structure uses a trigger mechanism with a pin, then the angle can be adjusted and fixed, but the structure becomes complex and requires multiple components
Solution Approach 1:
The invention extracts the essential securing function from the complex pin-and-trigger mechanism, retaining only the slider that meshes with positioning teeth. The elastic member provides the securing force without requiring separate pins, triggers, or multiple fastening components
Solution Approach 2:
The slider combines multiple functions into a single component: it serves as both the adjustment mechanism and the securing mechanism by meshing with the positioning teeth. The elastic member integrates the spring force function directly into the slider assembly, eliminating the need for separate pin insertion and trigger actuation mechanisms
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
This solution allows users to easily adjust and securely fix the dragon head handlebar angle, enhancing safety by preventing accidental sliding.
Implementation Method 1
an elastic member is provided on the top end of the slider such that the elastic member enables the slider to mesh automatically with the positioning teeth
Data Source
AI summary
This invention relates to a folding structure for carrier's handlebar, wherein it essentially comprises: a first joint (2) fixed in the front end of a carrier body (1) and having positioning teeth (25) formed on the sidewall in the interior thereof, and a second joint (3) pivotally provided in the first joint (2); a rail block (33) being fixed in the interior of the second joint (3), the rail block (33) being formed with a sliding rail (331), a slider (34) being formed in the sliding rail (331), occluding teeth (341) being formed on the bottom end of the slider (34) to mesh with the positioning teeth (25) of the first joint (2), a wire body (35) and an elastic member (36) being provided on the top end of the slider (34), and a dragon head handlebar (12) being provided on the second joint (3). In this manner, it is convenient for user to adjust the angle of the dragon head handlebar. In addition, the elastic member enables the slider to mesh automatically with the positioning teeth so as to ensure the safety of user.