Motorized Screen Head Assembly With Pivoting Roller Access
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Solution Overview
Problem
The head assembly of motorized blinds is typically located at the upper side of a window opening, making it difficult to access and service the motor and electrical components, often requiring the complete demounting of the blind for battery replacement and maintenance.
Innovation Solution
A head assembly design where the roller is mounted within a cover portion of the housing that can pivot open, allowing the roller to be moved along with the cover for easy access to the motor and power supply, with retaining means to secure the cover in place, and mounting brackets for secure attachment to the window frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the head assembly is mounted at the upper side of the window opening, then the blind structure is stable and secure, but access to the motor and electrical components becomes difficult
Solution Approach 1:
The housing is divided into a base portion that remains fixed for secure mounting and a cover portion that can be opened for access. This segmentation allows the mounting structure to maintain stability while providing a separate access mechanism for servicing components.
Solution Approach 2:
The cover portion is made movable between closed and open positions, transforming the static housing into a dynamic structure. This allows the housing to adapt between two states: secure closed position for reliable mounting and open position for easy component access.
2Stability of the object's composition
If the roller is fixed within the housing, then the structure is stable, but the roller cannot be accessed for maintenance without complete disassembly
Solution Approach 1:
The housing is segmented into fixed base portion and movable cover portion, allowing the roller to remain stably mounted in the base while the cover can be independently opened to access the roller and other components.
Solution Approach 2:
The movable cover portion acts as an intermediary element that provides access to the roller without requiring removal of the entire housing or mounting structure. It mediates between the need for stable mounting and the need for component accessibility.
3Ease of operation
If the cover portion is made movable for access, then component accessibility is improved, but the housing structure becomes more complex
Solution Approach 1:
The housing is divided into two functional portions with distinct roles: the base portion for secure mounting and the cover portion for access. This segmentation creates a simple yet effective mechanism that improves accessibility without requiring complex additional components.
Solution Approach 2:
The cover portion is designed with simple movable characteristics (pivoting or sliding motion) that provide dynamic access functionality. This minimal dynamic element allows the housing to transition between closed and open states without introducing significant structural complexity.
Data Source
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AI summary
A head assembly for a motorised screen, said head assembly comprising a roller upon which is wound a screen, a motor being provided for raising or lowering the screen, control means for controlling operation of said motor and a power supply for powering said motor, said roller, motor, control means and power supply being mounted within an elongate housing to be mounted within an upper region of a window or door opening, said housing having a base portion adapted to be fitted within said window opening and a cover portion mounted on the base portion for movement between a closed position and an open position, said roller being mounted in said cover portion of the housing.