Blinds Blade Angle Adjuster With Nested Worm Drive Assembly
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Solution Overview
Problem
Conventional angle adjusting mechanisms for blinds blades face issues such as increased packaging volume, damage during shipping, and limited practicality due to protruding components and complex assembly processes, which hinder disassembly and size flexibility.
Innovation Solution
An angle adjusting mechanism with a main body housing the worm gear and connecting rod, where the worm and worm gear engage within the body, and the driving rod is designed for quick assembly and disassembly with snap-fit connections, allowing for different sizes to accommodate various blinds blade sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the connector is combined with the worm gear and worm member using a separable design, then the adjuster can be disassembled for replacement, but the engaging slot engages with the stopping blade making disassembly difficult
Solution Approach 1:
The adjuster is divided into separable components: the connector can be detached from the worm gear and worm member. The engaging portion uses a simple hook structure that can be easily separated, allowing the connector to be replaced independently without disassembling the entire mechanism.
Solution Approach 2:
The connector is extracted as a separate replaceable component from the main adjuster mechanism. The engaging portion is designed with a simple hook structure that can be easily detached, allowing the connector to be removed and replaced without affecting the worm gear and worm member assembly.
2Ease of operation
If the second end of the connector is protruding outside the casing, then the connector can be easily accessed, but the packaging volume increases and shipping costs increase
Solution Approach 1:
The connector is designed to nest within the casing when not in use. The first end of the connector is received in a receiving space inside the casing, and only the necessary engaging portion protrudes slightly. This nested arrangement minimizes the overall packaging volume while maintaining functionality.
Solution Approach 2:
The connector uses a pivot extension that rotates within the casing rather than protruding linearly outward. The pivot extension can rotate to engage with the worm gear, but when disengaged, it folds back into the casing, utilizing internal space efficiently and reducing external dimensions for packaging.
3Ease of manufacture
If the connector protrudes outside the casing, then assembly is simpler, but the connector is easy to damage and break during shipping
Solution Approach 1:
The connector nests within the casing during shipping, with the first end received in the receiving space and only minimal portions protruding. This protected nested arrangement prevents damage during transportation while maintaining simple assembly through the hook-shaped engaging portion that can be easily connected.
Solution Approach 2:
The casing provides protective enclosure for the connector during shipping, cushioning it against external impacts. The receiving space within the casing acts as a protective chamber that prevents the connector from breaking during transportation, while the simple hook design ensures easy assembly after delivery.
4Ease of manufacture
If the adjuster uses a fixed size design, then manufacturing is simpler, but it lacks adaptability to different blinds blade sizes
Solution Approach 1:
The adjuster is segmented into modular components with standardized interfaces. The connector, worm gear, and worm member are separate units that can be assembled in different configurations. This modular segmentation allows the same basic components to be used across different sizes, providing adaptability while maintaining manufacturing simplicity through standardization.
Solution Approach 2:
The adjuster components are designed with universal features that allow them to function with different blinds blade sizes. The connector's hook-shaped engaging portion and the worm gear mechanism can accommodate various configurations, enabling the same basic design to serve multiple size requirements without requiring complete redesign.
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 design reduces the risk of damage during transportation, minimizes packaging volume, and enables rapid assembly and disassembly, improving the mechanism's practicality and adaptability by allowing for easy size adjustments.
Implementation Method 1
a worm 22 and a worm gear 21. The worm gear 21 is disposed in the first container 12, and the worm 22 is assembled with the connecting rod 23 and installed in the second container 13, wherein the worm 22 engages the worm gear 21
Data Source
AI summary
An angle adjusting mechanism for blinds blades has a main body and a driving unit. The worm gear of the driving unit is housed in the first container of the main body, and the worm and the connecting rod of the driving unit are positioned in the second container of the main body. The worm and the worm gear engage with each other, and the pivot extension at the end of the connecting rod is located at the second opening of the main body and does not protrude from the main body, which avoids transportation damage and greatly reduces the volume of the adjustment mechanism. For the purpose of quick disassembly and assembly, the driving rod of the driving unit is also assembled with the connecting rod, and of the driving rods are designed with several different sizes, so that the adjusting mechanism can change the driving rod at according to the size of the blinds blades.