Torque Transfer Coupler Anti-Slip Resilient Retention
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Solution Overview
Problem
The installation of roller blinds with electric motors is challenging due to added weight and the risk of motor displacement, particularly in long tubes, which complicates handling and increases the risk of motor damage or injury during installation.
Innovation Solution
A torque transfer coupler with an anti-slip feature, comprising a central body with torque transfer elements and resilient portions, securely engages the motor to the roller tube, resisting withdrawal and preventing accidental sliding, while allowing intentional removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a motor is received within the roller tube to drive the blind, then the motor can be integrated into a compact structure, but the added weight makes installation more difficult and increases the risk of motor displacement
Solution Approach 1:
The motor is nested within the roller tube, with the coupler receiving the motor shaft and securing it inside the tube. This nested configuration achieves compact integration while the coupler's anti-slip features prevent displacement during installation and operation.
Solution Approach 2:
The coupler acts as an intermediary component between the motor and the roller tube. It transfers torque from the motor to the tube while its resilient portions engage the tube's interior surface to prevent motor displacement, thus solving both integration and installation stability requirements.
2Power
If the motor is secured to the roller tube, then torque can be transmitted effectively, but the motor may slide longitudinally and fall from the end of the tube during installation
Solution Approach 1:
The resilient portions of the coupler are designed to engage the interior surface of the roller tube in advance, creating a preliminary anti-action force that prevents the motor from sliding longitudinally and falling during installation before the motor is fully secured.
Solution Approach 2:
The coupler's resilient portions engage the roller tube interior surface during the insertion process, establishing retention forces before the motor completes its positioning. This preliminary action ensures the motor remains secured throughout the installation process.
3Device complexity
If the motor housing is made as a small diameter elongate tubular structure, then the motor can be received within the roller tube, but the motor adds significant weight to the roller blind
Solution Approach 1:
The motor housing is designed as a nested structure that fits within the roller tube's interior space. This nesting approach allows the motor to be integrated into a compact form factor, minimizing the addition of external weight while maintaining functional requirements.
4Ease of repair
If the motor is merely slid into the roller tube for easy removal, then servicing is simplified, but the motor may accidentally slide out during installation or operation
Solution Approach 1:
The coupler employs resilient portions that can dynamically adjust during motor insertion and removal. During installation, these resilient portions engage the tube interior to prevent accidental sliding. During servicing, the same resilient portions allow controlled removal when intentional force is applied, thus balancing retention and ease of repair.
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
Enhances torque transmission, centers the motor, prevents wobble, and securely retains the motor within the tube, simplifying installation and reducing the risk of accidents by providing a stable connection.
Implementation Method 1
an anti-slip member having one or more resilient portions, said one or more resilient portions having a rest position and a deflected position, when said resilient portions are in said rest position said one or more anti-slip members having a dimension larger than the cross sectional area of the hollow interior of the roller tube such that insertion of said torque transfer coupler into the roller tube causes said resilient portions to be moved to said deflected position
Data Source
AI summary
A torque transfer coupler for a roller blind. The torque transfer coupler has a central body securable to an electric motor and includes one or more torque transfer elements engaging the interior of the blind's roller tube. The coupler includes an anti-slip member having one or more resilient portions having a rest position and a deflected position. When, in their rest positions the resilient portions have a dimension larger than the cross sectional area of the roller tube. When in their deflected positions and received within the roller tube the resilient portions engage the interior surface of the roller tube resisting the withdrawal of the torque transfer coupler, and the electric motor secured thereto, from the interior of the roller tube.