Mid-Air Release Module Assembly for Simultaneous Spring-Actuated Cargo Release
Solution Overview
Problem
Existing aerial delivery systems lack a reliable, durable, and simple mechanism for autonomously releasing cargo payloads in mid-air or upon landing, without generating electromagnetic interference, especially in harsh environments where access to replacement parts and power sources is limited.
Innovation Solution
A release module assembly using a frame with a bar and ram mechanism, actuated by compressed springs, that applies simultaneous force to multiple cables to release cargo, eliminating the need for batteries or electronic components, and incorporating a lock beam and release lever for controlled actuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If electronic control systems with batteries and linear actuators are used to release cargo latches, then automated and remote release capability is achieved, but device complexity and susceptibility to electromagnetic interference increase
Solution Approach 1:
The patent removes electronic components, batteries, and control systems from the cargo release mechanism, extracting only the essential mechanical elements (springs, levers, latches, cables) needed for autonomous release. This eliminates the complexity and electromagnetic interference issues while preserving the automated release function through purely mechanical means.
Solution Approach 2:
The patent replaces electronic control systems with a purely mechanical system where compressed springs provide actuation force, levers transmit motion, and cables deliver the release command to multiple latches simultaneously. This mechanical substitution eliminates the need for batteries and electronic circuits while achieving the same automated release capability.
2Measurement precision
If electronic circuits and sensors are used to detect release conditions, then precise control of release timing is achieved, but electromagnetic interference and susceptibility to environmental conditions increase
Solution Approach 1:
The patent removes all electronic sensors, circuits, and power sources from the release system, extracting only the mechanical components necessary for timing and control. This eliminates electromagnetic interference while maintaining precise release timing through mechanical means such as spring compression duration and lever geometry.
Solution Approach 2:
The mechanical system is self-regulating through inherent physical properties: spring compression provides automatic actuation force, lever arms provide mechanical advantage and motion transmission, and the geometry of linkages provides built-in timing control. The system uses its own mechanical energy storage and transmission mechanisms to achieve precise timing without external electronic control.
3Ease of operation
If multiple separate latch release mechanisms are used for multiple cargo straps, then individual control of each latch is possible, but release time and operational complexity increase
Solution Approach 1:
The patent combines multiple separate latch release mechanisms into a single integrated system where one compressed spring actuates a lever that simultaneously pulls multiple cables, which in turn release multiple latches at once. This merging reduces release time while maintaining the ability to control each latch through the unified mechanical linkage system.
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
Ensures reliable and simultaneous release of multiple cargo latches, maintaining system integrity in harsh conditions without electromagnetic interference, ensuring secure detachment of cargo from platforms.
Implementation Method 1
At least one spring or bias member is compressed between the bar and the ram to bias the ram toward the second position
Data Source
AI summary
A mid-air release module uses one or more bias members to move a ram connected to one or more cables to release at least one releasable coupling connecting cargo to an air cargo platform. The ram is held in a cocked position by a release lever held in a first position by a trigger until the occurrence of a triggering event. When released, the release lever moves to a second position, allowing the ram to move and exert a simultaneous pulling force on the cables to open releasable couplings connecting the cargo to the platform at the same time. A release module using force generated by bias members such as springs does not need a power source and will function reliably in adverse conditions.