Roller Door Operator Assembly for Multi-Standard Drum Wheel Fit
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing moveable barrier operator assemblies face challenges in accommodating different engagement requirements presented by various roller door types and configurations, leading to installation inconveniences due to incompatible drum wheel standards across manufacturers and jurisdictions.
Innovation Solution
The operator assembly features a rotating crown wheel with multiple shaped attachment portions and output drive extension elements of different sizes and shapes, allowing selection based on the specific physical characteristics of the drum wheel, ensuring effective engagement and balanced loading in both directions of rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single fixed engagement configuration is used, then the device structure is simple, but it cannot accommodate different roller door types and configurations
Solution Approach 1:
The crown wheel is designed with multiple attachment portions that can accommodate different roller door types and configurations. Each attachment portion can be selectively engaged with drum wheels of different sizes and aperture configurations, making the operator assembly universally applicable to various roller door systems while maintaining a single standardized interface design
Solution Approach 2:
The engagement mechanism is segmented into multiple discrete attachment portions on the crown wheel, each capable of independent selection. This segmentation allows the installer to choose the appropriate attachment portion for different drum wheel configurations without requiring completely different operator assemblies, thus providing versatility while keeping the overall device structure relatively simple
2Adaptability or versatility
If multiple engagement configurations are provided, then adaptability to different roller door types is improved, but installer selection time and complexity increase
Solution Approach 1:
The crown wheel is pre-configured with multiple attachment portions designed for different drum wheel standards and configurations. This preliminary preparation allows installers to quickly select the appropriate attachment portion based on the specific roller door type without requiring complex calculations or custom modifications, thereby reducing installation time while maintaining high adaptability
Solution Approach 2:
Different attachment portions are designed with specific local characteristics tailored to different drum wheel types. Each attachment portion has optimized engagement features for its intended drum wheel configuration, allowing installers to rapidly identify and select the correct local configuration without needing to understand the entire system in detail, thus speeding up the selection process
3Reliability
If extension elements bear on drum wheel aperture periphery, then power transfer is balanced in both rotation directions, but the engagement geometry becomes more complex
Solution Approach 1:
The extension elements are designed with asymmetric engagement geometry that naturally accommodates bidirectional rotation. The elements engage with the drum wheel aperture periphery in a way that provides balanced power transfer during both clockwise and counterclockwise rotation, with the asymmetric design allowing the same element to function effectively in both directions without requiring separate engagement features for each direction
Data Source
AI summary
The invention provides an operator for a roller closure. The operator includes an output drive comprising a rotating crown wheel. The crown wheel is configured to receive for attachment at least one output drive extension element selected from at least one first output drive extension element of a first size and shape or at least one second output drive extension element of a second, different size and shape, based on one or more physical characteristics of the particular drum wheel of the roller closure.