Disposable Plastic Door Hardware Spring Latch Assembly
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Solution Overview
Problem
The construction industry faces high costs and storage challenges due to the expense of temporary metal door hardware used in construction sites, which are often not reusable and require storage until the next project.
Innovation Solution
A temporary door hardware system comprising non-metallic components, such as plastic, wood, or composite materials, with a latch assembly featuring a spring bias that extends and retracts to secure the door, and a mechanism that requires permanent destruction for unattachment, allowing for cost-effective and disposable solutions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal temporary door hardware is used, then security and durability are improved, but cost and storage requirements increase
Solution Approach 1:
The patent applies the disposable principle by designing temporary door hardware made from low-cost materials such as plastic, wood, or composite materials that can be used once and then discarded. The hardware includes a latch assembly with a spring bias mechanism that secures the door during construction but is intended for single-use only, eliminating the need for expensive metal hardware and long-term storage facilities.
Solution Approach 2:
The patent changes the material parameters from traditional metal to alternative materials like plastic, wood, or composites. This parameter change reduces both cost and storage requirements while maintaining sufficient functionality for temporary door securing during construction periods.
2Strength
If metal temporary door hardware is used, then durability is improved, but cost increases
Solution Approach 1:
The patent applies the disposable principle by designing temporary door hardware made from low-cost materials such as plastic, wood, or composite materials that can be used once and then discarded. The hardware includes a latch assembly with a spring bias mechanism that secures the door during construction but is intended for single-use only, eliminating the need for expensive metal hardware and long-term storage facilities.
Solution Approach 2:
The patent employs composite materials (plastic, wood, or composite combinations) to create door hardware that provides sufficient durability for temporary construction use while significantly reducing manufacturing cost compared to traditional metal hardware.
3Reliability
If a secure attachment mechanism is used, then reliability is improved, but ease of removal decreases
Solution Approach 1:
The patent extracts the attachment mechanism from permanent fixtures and makes it removable. The hardware attaches to the door using a mechanism that can be easily removed by pulling the hardware away from the door, leaving no permanent fixtures. This allows reliable temporary securing while maintaining ease of removal for disposal or relocation.
Solution Approach 2:
The patent applies dynamics by designing an attachment system that transitions from a secured state during use to an easily removable state when needed. The spring bias mechanism provides dynamic securing force during construction, but the entire assembly can be easily detached by applying force to overcome the spring tension, enabling quick removal without permanent installation.
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 system provides a cost-effective, disposable, and efficient temporary door hardware solution that reduces storage needs and installation costs by using non-metallic materials and a secure latch assembly that can be easily removed and replaced, suitable for construction sites where security is less of a concern.
Implementation Method 1
the latch assembly includes a spring bias configured to extend the latch assembly into the opening and retract the latch assembly from the opening
Data Source
AI summary
A temporary door hardware system comprising a first side component configured to be exposed from a side of a door when the temporary door hardware system is installed in the door, a second side component attachable to the first side component and configured to be exposed from another side of the door when the temporary door hardware system is installed in the door, a latch assembly securable between the first and second side component when the components are installed in the door, wherein the latch assembly is dimensioned for integration with an opening in an door frame, wherein the latch assembly includes a spring bias configured to extend the latch assembly into the opening and retract the latch assembly from the opening, wherein the spring bias allows the latch assembly to retract from the opening when a threshold force is exerted on the door is provided.