Shade Device Guide Rail Folding Mechanism
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Solution Overview
Problem
The existing shade device configuration can lead to assembly errors causing steps or bending between guide rails, resulting in increased friction, abnormal noise, and potential motor failure due to increased load during operation.
Innovation Solution
A shade device with rotating connecting parts that allow guide rails to fold and adjust, reducing friction and load, and enabling smooth operation and compact transportation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the guide rails are connected by joining the extension-side rail to the proximal-side rail immediately before attachment to the vehicle, then the entire shade device becomes compact and transport efficiency is improved, but assembly errors may generate steps or bending between rails causing increased friction and abnormal noise
Solution Approach 1:
The guide rails are designed to be movable relative to each other through rotating connecting parts, allowing the rails to adjust their positions dynamically. This enables the rails to accommodate assembly variations and maintain proper alignment without requiring extremely precise manual assembly, thus resolving the contradiction between compact storage and assembly precision.
Solution Approach 2:
The rotating connecting parts allow the guide rails to change their spatial parameters (position and orientation) relative to each other. By enabling parameter adjustment through rotation, the system can compensate for assembly errors and maintain proper alignment even when the rails are connected in a compact configuration.
2Volume of moving object
If the guide rails are connected by joining the extension-side rail to the proximal-side rail immediately before attachment to the vehicle, then the entire shade device becomes compact and transport efficiency is improved, but the load on the motor increases and durability deteriorates
Solution Approach 1:
The rotating connecting parts provide dynamic adjustment capability that allows the guide rails to self-align during operation. This reduces abnormal friction and load fluctuations on the motor, thereby improving motor durability while maintaining the compact connected configuration of the guide rails.
Solution Approach 2:
The rotating connecting parts act as a cushioning mechanism that absorbs and compensates for assembly errors before they can transmit excessive load to the motor. By providing this preliminary compensation, the system protects the motor from abnormal stress and extends its service life.
3Ease of manufacture
If the guide rails are rigidly connected without rotation capability, then the structure is simple and manufacturing is easy, but the runners cannot move smoothly causing increased friction and abnormal noise
Solution Approach 1:
The connecting parts between guide rails are designed to rotate, transforming the rigid static connection into a dynamic adjustable connection. This allows the runners to move smoothly along the rails without being hindered by fixed misalignments, while still maintaining relative simplicity in the overall structure.
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 solution allows for smooth drawing and housing of shades, reduces assembly errors, and prevents motor failure by minimizing friction and load on the motor, while enabling compact transportation and accurate attachment to vehicles.
Implementation Method 1
the first connecting part connects the stay and each of the runners so as to rotate relative to each other such that each of the guide rails is folded in a direction to approach the windup device
Data Source
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AI summary
Included are a windup device, a shade attached to the windup device so as to be drawn therefrom and housed therein, a stay attached to a drawing-side edge of the shade, a pair of runners respectively connected to both ends of the stay via first connecting parts, and a pair of guide rails respectively supporting the pair of runners in a movable manner. The first connecting part connects the stay and each of the runners so as to rotate relative to each other in such a manner that each of the guide rails is folded in a direction to approach the windup device.