Mechanical Parcel Clamp Using Weight-Triggered Automatic Release
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Solution Overview
Problem
Current drone and ground vehicle delivery systems lack an efficient means to securely transport parcels and automatically release them upon delivery, often relying on complex electronic systems that can be damaged and reduce vehicle range.
Innovation Solution
A clamp mechanism using pivotally coupled members with a linkage system that utilizes the weight of the item to generate a clamping force, automatically securing and releasing the parcel based on its weight, and extension members that assist in maintaining the closed position during transport and opening when the item is lowered.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If electronic systems and sensors are used to release the parcel, then the delivery can be automated, but the system becomes more complex and vulnerable to damage
Solution Approach 1:
The patent replaces electronic systems and sensors with a purely mechanical linkage system. The linkage is connected to the parcel suspension line such that when the parcel weight pulls the line, the linkage automatically triggers the clamp to open and release the parcel. This mechanical substitution eliminates complex electronics while achieving automated release based on parcel delivery conditions.
Solution Approach 2:
The mechanical linkage system is designed to automatically detect when the parcel has been delivered (when the suspension line goes slack) and self-trigger the release mechanism without external control signals. The system serves itself by using the parcel's own weight and position to activate the release, eliminating the need for external electronic control systems.
2Extent of automation
If electronic systems and sensors are used for parcel release, then automation is achieved, but energy consumption increases
Solution Approach 1:
The patent replaces energy-consuming electronic systems with a passive mechanical linkage that uses the parcel's own weight and gravitational force to trigger release. No additional energy is required from the UAV's power system, as the mechanical system converts the parcel's weight into the releasing action automatically.
Solution Approach 2:
The linkage system uses the parcel's weight and position to power the release mechanism itself. When the parcel is delivered and the suspension line becomes slack, the linkage automatically converts this mechanical state change into the action of opening the clamp, requiring no external energy input from the UAV's battery or propulsion system.
3Extent of automation
If additional batteries are added to power electronic systems, then automation capability is improved, but vehicle weight increases
Solution Approach 1:
The patent eliminates the need for additional batteries by replacing electronic automation systems with a mechanical linkage. The linkage is powered entirely by the parcel's weight and the suspension line tension, converting gravitational force into the releasing action without requiring any additional energy storage devices on the UAV.
Solution Approach 2:
The release mechanism is self-powered by the parcel itself. The parcel's weight provides the energy needed to operate the linkage and trigger the clamp release, eliminating the need for the UAV to carry additional batteries or energy sources for the automation system.
4Extent of automation
If additional batteries are added to power electronic systems, then automation capability is improved, but effective range decreases
Solution Approach 1:
The patent replaces battery-powered electronic systems with a mechanical linkage that derives energy from the parcel's weight. This substitution eliminates the weight penalty of additional batteries, preserving the UAV's effective range and flight duration while still achieving automated parcel release functionality.
Solution Approach 2:
The automation system is self-powered by the parcel's gravitational potential energy, requiring no additional energy resources from the UAV. This eliminates the trade-off between automation capability and effective range, as the linkage system does not consume any of the UAV's limited energy reserves.
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
Enables secure transportation and automatic release of parcels without the need for complex electronic systems, reducing weight and energy consumption, and ensuring reliable operation across varying delivery conditions.
Implementation Method 1
The clamp may utilize the weight of the item to generate a clamping force, for example when the item is lifted or suspended
Implementation Method 2
the clamp may include a tensioning element that biases the clamp to the open position
Data Source
AI summary
Aspects herein are directed to a clamp having a linkage coupled to a first end of a first and second clamp member. Based on applying a first directional force to the linkage, the linkage generates a force that moves the second ends of the first and second clamp member towards one another, thereby biasing the clamp to the closed position. The clamp secures a strap when the clamp is in the closed position and releases the strap when the clamp is in an open position.