Torsion Spring Screen Door Closer with Adhesive Mounting
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Solution Overview
Problem
Existing screen door closing devices are complex, require permanent attachments, and often fail due to unbalanced force distribution, making them difficult to install and prone to failure over time.
Innovation Solution
A straightforward, adhesive-based attachment system using double-sided mounting tape and a poly braid and clasp mechanism that automates the closing of sliding screen doors by leveraging a torqued spiral torsion spring, allowing for adjustable torque settings and easy manual operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a torsion spring is used to operate the device with adjustable range of torque, then the torque range is improved, but the amount of components and device complexity increases
Solution Approach 1:
The patent combines the torsion spring mechanism with the closure device housing into a single integrated unit. The torsion spring is mounted directly within the housing structure, eliminating the need for separate mounting brackets and fasteners. This merging of components maintains the adjustable torque range functionality while significantly reducing the total component count and simplifying the overall device assembly.
2Strength
If a permanent structure is used to attach the device, then the attachment strength is improved, but the ease of installation and adaptability decreases
Solution Approach 1:
The patent introduces a dual-attachment system that uses adhesive tape as an intermediary between the device and the sliding screen door structure. This intermediary allows the device to achieve sufficient attachment strength without requiring permanent structural modifications. The adhesive tape mediates between the need for strong attachment and the desire for easy installation and adaptability to different door configurations.
3Force
If the device is attached to achieve strong closure force, then the closure effectiveness is improved, but the balance of force distribution on the panel worsens
Solution Approach 1:
The patent employs multiple attachment points distributed across the device structure rather than concentrating the closure force at a single location. Each attachment point applies a portion of the total closure force, creating a balanced force distribution across the sliding screen door panel. This local quality approach ensures that no single area of the panel experiences excessive stress that could lead to failure, while still achieving effective closure.
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
The solution provides reliable, automated screen door closure with adjustable torque settings, ensuring consistent operation and easy installation without requiring a permanent structure, thus preventing panel failure and simplifying the manufacturing process.
Implementation Method 1
An adhesive, double sided mounting tape with a weight capacity consistent with its use, will secure the device to the sash edge of the anchored glass panel
Implementation Method 2
the torqued spiral torsion spring attached to the dowel, cylinder, poly braid, clasp, support, and sliding screen panel
Implementation Method 3
The dowel torques the spiral torsion spring further than the preset torque causing a graduating pressure on the dowel, cylinder, poly braid, clasp, support, and screen panel sash
Implementation Method 4
the attached support pulls the clasp, and subsequently the spooled poly braid, which causes the cylinder to move in a circular direction around its axis
Data Source
AI summary
A device that has adjustable torque, and is used for the mechanical automation of closing a sliding screen door panel in a manner that is consistent with the force of a natural beings manual operation of the sliding screen door panel. The device is engineered to be consistent with the design of the said sliding screen panel, to prevent failure of the sliding screen panel after longterm continuous use with the device.