Rotating Tension Latch for Actuator-Free Drone Package Release
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current drone delivery systems face challenges in fully automated package loading and unloading, limited delivery range, and inefficient drop-off locations due to the need for human intervention and weight/energy constraints from actuator-based systems, which complicate the process and reduce cost efficiency.
Innovation Solution
An advanced rotating tension latch mechanism that allows for a simple, reusable mechanical fastener to securely attach and detach packages from drones without actuators, enabling fully automated loading and unloading across various environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If actuator-based systems are used for package attachment, then secure fastening is achieved, but device complexity and weight increase
Solution Approach 1:
The patent removes actuators and complex mechanical systems from the package attachment mechanism, extracting only the essential function of secure fastening through a simple rotating latch that operates passively under tension and gravity
Solution Approach 2:
The latch mechanism is designed to automatically engage and secure packages through its own geometric features and tension-based operation, without requiring external actuators or complex control systems to initiate or maintain the fastening action
2Reliability
If actuator-based systems are used for package attachment, then secure fastening is achieved, but weight increases
Solution Approach 1:
The patent removes actuators and complex mechanical systems from the package attachment mechanism, extracting only the essential function of secure fastening through a simple rotating latch that operates passively under tension and gravity
Solution Approach 2:
The latch mechanism uses simple, lightweight components that can be easily replaced or discarded, prioritizing minimal weight over durability, which is acceptable for single-use or limited-use drone delivery applications
3Adaptability or versatility
If manual loading and unloading is required, then delivery flexibility is maintained, but delivery time increases
Solution Approach 1:
The latch mechanism is designed to automatically engage and secure packages through its own geometric features and tension-based operation, without requiring external actuators or complex control systems to initiate or maintain the fastening action
Solution Approach 2:
The latch transitions from a static attachment system to a dynamic one that automatically responds to tension changes, enabling rapid engagement during pickup and automatic release during delivery without manual intervention
4Adaptability or versatility
If the latch rotates freely, then engagement flexibility is improved, but unstable engagement occurs
Solution Approach 1:
The cam surface is pre-configured with specific geometric profiles that guide the latch rotation and automatically position it in the correct engagement orientation before final latching occurs, preventing unstable or incorrect engagement positions
Solution Approach 2:
The cam surface employs asymmetric geometry with different slopes and profiles on opposite sides, creating a preferred rotation direction and stable equilibrium position that prevents the latch from rotating freely in either direction while maintaining engagement flexibility
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 rotating tension latch enhances drone package handling by improving flight stability, reducing weight and complexity, and enabling wider range delivery with increased automation, thus increasing delivery efficiency and reducing operational costs.
Implementation Method 1
a spring configured to apply a force to the cam surface
Implementation Method 2
a hook member operable to seat within an opening in the package and latch with a latch member
Data Source
AI summary
Provided is a latch member. The latch member, in one aspect, includes an upper portion and a lower portion extending from one or more surfaces and defining a central axis, the lower portion including first and second lower portions circumferentially spaced from one another and axially spaced from the upper portion to form first and second channels, the first and second lower portions having respective first and second leading peaks opposite the first and second channels, the first leading peak axially offset from the second leading peak, wherein the first and second channels are configured to each receive one of two pins of a related hook member and cause the latch member to rotate relative to the hook member, wherein the latch and hook member are configured to alternate between latched and unlatched configurations as the latch member reciprocates substantially along the central axis relative to the hook member.