Weighted Valuables Compartment Locking for Sand Jamming Resistance
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Solution Overview
Problem
Securing valuables in sand environments is challenging due to mechanical devices jamming with sand and rusting, and tampering to access compartments is common, especially when materials are flexible or not taut.
Innovation Solution
A system with a first compartment filled with sand to weigh it down, a second compartment for valuables, and a lock mechanism that secures the closure mechanism by crossing it with a tether or clamp to prevent manipulation, using non-metal materials and high gauge zippers to reduce jamming and tampering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a closure mechanism is used to secure the compartment, then access to valuables is controlled, but the closure mechanism can be manipulated to gain access
Solution Approach 1:
The security system is divided into multiple independent components: a closure mechanism for initial sealing and a separate lock mechanism for additional security. The lock mechanism includes a lock body with a lock arm that can be positioned in locked and unlocked states, and a lock button that actuates the lock arm. This segmentation allows each component to perform its specific function without compromising the other.
Solution Approach 2:
A tether is introduced as an intermediary element that connects the lock mechanism to the closure mechanism. The tether extends from the lock body through the closure mechanism, creating a physical linkage that prevents manipulation of the closure mechanism when the lock is engaged. This intermediary element transfers the locking action to the closure mechanism, ensuring secure sealing.
2Reliability
If mechanical devices are used in sand environments, then closure and locking functions are achieved, but the devices jam with sand and rust
Solution Approach 1:
The lock button is designed with specific dimensional parameters: a length between 0.5 to 2 inches and a diameter between 0.25 to 1 inch. These parameters ensure the lock button is large enough to resist jamming by sand particles while maintaining maneuverability. The lock arm is designed with a specific geometry that allows it to engage and disengage reliably without being caught on sand.
Solution Approach 2:
The lock mechanism and closure mechanism are designed to accommodate different material options that resist rust and sand jamming. Non-metallic materials such as corrosion-resistant polymers or treated metals can be used for components exposed to sand and moisture. The clamp portion can be made of materials that provide secure gripping without creating excessive friction that would cause jamming.
3Weight of moving object
If the first compartment is filled with sand, then the system is weighed down to prevent theft, but the sand can cause mechanical devices to jam
Solution Approach 1:
The lock mechanism is designed to be removable from the first compartment and stored in the second compartment when not in use. This extraction allows the lock mechanism to be kept separate from the sand-filled compartment, preventing sand from jamming the locking components while still providing security when needed.
Solution Approach 2:
The system is designed with pre-positioned eyelets in the first compartment that align with the tether on the lock mechanism. This preliminary arrangement ensures that when the lock mechanism is positioned in the first compartment, the tether can automatically engage with the eyelets without requiring manual adjustment, reducing the risk of sand interfering with the alignment.
4Reliability
If a lock mechanism crosses the closure mechanism, then manipulation of the closure is reduced, but the device complexity increases
Solution Approach 1:
Instead of having the lock mechanism complexly integrated into the closure mechanism, the design inverts the approach by having the closure mechanism simple and the lock mechanism separate. The lock button and lock arm provide the locking function, while the closure mechanism remains a simple zipper or snap fastener. This inversion simplifies the overall system while maintaining security.
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 effectively deters theft by preventing access to valuables through jamming and tampering, ensuring secure storage in sandy conditions.
Implementation Method 1
filling a first compartment with more than about 40 pounds of sand
Data Source
AI summary
A method may include filling a first compartment with at least about 40 pounds of sand. A method may include securing one or more valuables in a second compartment. A method may include closing the second compartment. A method may include positioning the second compartment within the first compartment and closing, using a closure mechanism, the first compartment. A method may include at least partially crossing the closure mechanism with a lock mechanism to reduce manipulation of the closure mechanism to reduce access to the second compartment within the first compartment.