Stage Light Shading Blade Linkage Without Guide Slot Jamming
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Solution Overview
Problem
Existing stage light fixtures face issues with increased resistance and potential jamming due to guide components in light shading blades, necessitating higher-powered motors and hindering miniaturization.
Innovation Solution
A light shading element with pivotally connected first and second driving mechanisms, allowing the light shading blade to move in a plane without additional guide components, utilizing arcuate trajectories for the pivot points to achieve precise movement and reduce structural damping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If guide components (guide slots and guide posts) are added to guide the light shading blade, then the light shading blade can be guided during movement, but the resistance to movement increases and potential jamming occurs
Solution Approach 1:
The patent removes the guide components (guide slots and guide posts) from the system entirely. Instead of adding guidance through separate components, the invention uses the pivot points themselves to define the movement trajectory through arcuate paths, thereby eliminating the sources of resistance and jamming while maintaining guiding functionality.
Solution Approach 2:
Rather than using guide components to constrain the blade movement, the invention inverts the approach by using the driving mechanisms' pivot points to naturally define the movement path. The arcuate trajectories are inherent to the rotational movement around fixed pivot points, eliminating the need for separate guidance structures.
2Reliability
If guide components are added to guide the light shading blade, then the light shading blade can be guided during movement, but higher-powered motors are required
Solution Approach 1:
By removing the guide components that create resistance, the system reduces the load on the driving motors. The motors only need to overcome friction at the pivot points rather than additional resistance from guide slot interactions, allowing for smaller, more efficient motor selection.
Solution Approach 2:
The invention changes the movement parameters from linear translation with guide constraints to rotational movement around pivot points. This parameter change fundamentally alters the force requirements, reducing the power needed while maintaining effective blade control throughout the movement range.
3Reliability
If guide components are added to guide the light shading blade, then the light shading blade can be guided during movement, but the structure becomes more complex and larger
Solution Approach 1:
The patent eliminates guide slots, guide posts, and associated mounting structures, significantly reducing the number of components. The guiding function is integrated into the existing driving mechanism through the pivot point connections, simplifying the overall structure while maintaining reliable blade movement control.
Solution Approach 2:
The invention merges the guiding function with the driving function by using the same pivot point connections for both purposes. The driving mechanisms simultaneously provide both the driving force and the guidance through their rotational centers, eliminating the need for separate guidance subsystems.
4Reliability
If guide components are added to guide the light shading blade, then the light shading blade can be guided during movement, but miniaturization is hindered
Solution Approach 1:
By removing the bulky guide components (guide slots in the partition portion and guide posts on the blade), the patent significantly reduces the volume required for the light shading element. The compact pivot point connections allow for a much more compact overall design that enables miniaturization while preserving guiding reliability.
Data Source
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AI summary
A light shading element includes a base plate having a light-transmitting hole, a light shading blade for at least partially blocking the light-transmitting hole, and first and second driving mechanisms pivotally connected to the light shading blade to drive its movement in a plane. The first driving mechanism is pivotally connected to the light shading blade through a first pivot point, and the second driving mechanism is pivotally connected to the light shading blade through a second pivot point. The first pivot point and the second pivot point are located on the same side of the light shading blade. The movement of the light shading blade in the plane is constrained only by the first pivot point and the second pivot point. Under the driving of the first driving mechanism and the second driving mechanism, the light shading blade is configured to selectively move close to and away from the light-transmitting hole to respectively block and unblock the light-transmitting hole. During the movement of the light shading blade, the first pivot point moves along an arcuate trajectory under the driving of the first driving mechanism, and when the first pivot point is at any position along its arcuate trajectory, the second pivot point is capable of moving along an arcuate trajectory around the first pivot point under the driving of the second driving mechanism.