Gable vent assembly with offset lock
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Solution Overview
Problem
Gable vent assemblies occupy significant space during storage and transport due to their components being packed on top of one another, and there is a need for a design that allows for compact packing while enabling easy installation and secure locking.
Innovation Solution
A gable vent assembly with a base and cover that feature offset locks allowing for nesting in an unlocked position during storage and transport, and secure locking during installation, with adjustable distance between the base and cover.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the base and cover are packed on top of one another during storage and transport, then space utilization is improved, but the assembly cannot be securely locked together
Solution Approach 1:
The cover is designed to nest within the base when removed from the attic wall, with the cover's outer dimensions being smaller than the base's inner dimensions. This nesting configuration reduces storage and transport space requirements while maintaining the ability to lock securely when installed
Solution Approach 2:
The locks are positioned at asymmetric offset locations on the base and cover rather than symmetrically. This asymmetric positioning allows the components to nest during storage while preventing the locks from engaging, and enables secure locking only when properly installed in the attic wall
2Reliability
If the base and cover are designed to lock together securely during installation, then reliability is improved, but storage and transport space requirements increase
Solution Approach 1:
The cover nests within the base during storage and transport, reducing the overall volume to approximately the size of the base alone. The nesting is enabled by making the cover's outer dimensions smaller than the base's inner dimensions
Solution Approach 2:
The locking mechanism transitions from a locked state during installation to an unlocked state during storage. The asymmetric lock positioning dynamically prevents engagement during nesting while enabling secure locking when installed in the attic wall
3Reliability
If the locks are positioned to engage during nesting, then locking security is improved, but the nesting configuration becomes impossible
Solution Approach 1:
The locks are positioned at asymmetric offset locations rather than symmetrically aligned. This asymmetric positioning ensures that when the cover nests within the base, the locks do not align and cannot engage, enabling smooth nesting during storage and transport
Data Source
AI summary
A gable vent assembly has a base that mates and locks with a cover having vents in a first position when locks of the base and cover are aligned with one another to lock together. The cover and base nest together in a second unlocked position when the cover is rotated relative to the base so that locks of the base and cover are not aligned and cannot lock together.