Vacuum Rigidizing Protective Encasement for Handheld Articles
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Solution Overview
Problem
Current protective covers for handheld articles lack structural rigidity and a snug fit, leading to inadequate protection against point impacts and cumulative damage during shipping and transport, as they are often made of soft materials that do not effectively absorb external loads or minimize article movement.
Innovation Solution
A flexible encasement protective apparatus with a fluid-tight sidewall and particulate items that become rigid when evacuated, providing a custom fit and structural support to absorb external loads while minimizing article movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If soft foam padded materials are used in protective covers, then the cover is easy to manufacture and comfortable to handle, but the cover lacks structural rigidity to resist point impacts and allows article movement during transport
Solution Approach 1:
The protective cover uses a composite structure combining a flexible outer shell with an inflatable internal support structure. The shell provides ease of manufacture and flexibility, while the inflatable core provides structural rigidity when activated, resolving the contradiction between manufacturability and strength.
Solution Approach 2:
The cover incorporates an inflatable internal structure that can be filled with air or gas to provide structural support. This pneumatic element transforms the cover from a soft, flexible state during manufacturing to a rigid, protective state during use, addressing both ease of manufacture and structural strength requirements.
2Adaptability or versatility
If the protective cover is made loose-fitting to accommodate various article sizes, then the cover has high adaptability, but the article moves and bangs around inside the cover during transport causing cumulative damage
Solution Approach 1:
The cover employs a dynamic internal support structure that can be inflated to change its shape and rigidity. When activated, the inflatable core expands to conform to the article's shape, providing a snug fit that prevents movement and damage while maintaining adaptability to different article sizes.
Solution Approach 2:
The cover's internal volume and rigidity parameters are changed by inflating the internal structure. This parameter change allows the cover to transition from a loose, adaptable state during storage to a rigid, custom-fitting state during transport, preventing article movement and cumulative damage.
3Strength
If a custom hard shell enclosure is used to provide structural rigidity and snug fit, then the protective cover resists impacts and minimizes article movement, but the cover cannot be reused for multiple transport scenarios
Solution Approach 1:
The cover uses a dynamic inflatable internal structure that can be deflated and stored in a compact form, then inflated during use to provide structural support. This dynamic design allows the cover to be reused for multiple transport scenarios while maintaining structural rigidity and protective capabilities when activated.
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 apparatus effectively absorbs external loads and reduces article movement, preventing cumulative damage by transforming into a rigid shell when evacuated, thus enhancing the protection of handheld articles during transport.
Implementation Method 1
When a portion of the fluid is evacuated from the primary interior through the second aperture, creating a negative pressure within the primary interior
Implementation Method 2
compressing the particulate items together to stiffen the encasement for protecting the article
Data Source
AI summary
A protective apparatus for an article, the apparatus including a surrounding sidewall having a first end portion and an opposing second end portion, the sidewall also having a perpendicularly oriented first margin portion and an opposing second margin portion, also with a primary interior. In addition, included is a plurality of particulate items loosely disposed within the primary interior and a structure for removable engagement positioned adjacent to the first and second margins. The removable engagement structure facilitates the first and second margins to be removably engaged allowing the surrounding sidewall to envelope the article. The primary interior can be evacuated, thus removing the air spaces between the particulate items and in the interior resulting in rigidifying the surrounding sidewall partially encompassing the article to protect the article.