Drone Package Hook and Latch for Automated Pick-and-Place
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Solution Overview
Problem
Current drone delivery systems face limitations in fully automated loading and unloading capabilities, leading to increased costs, reduced delivery efficiency, and limited range due to the need for human intervention and complex hardware, which also restricts drop-off locations.
Innovation Solution
A pick-and-place system utilizing a hook container with integrated pins and a latch mechanism allows for automated grasping and transport of packages by drones, enabling fully automated loading and unloading at a wider range of locations without human assistance, using a tether system to assist in payload ascension and descent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If magnetic forces are used to grasp the assembly, then grasping capability is improved, but assemblies sensitive to magnetism are adversely affected
Solution Approach 1:
The patent replaces magnetic or vacuum force systems with a mechanical grasping system using a robotic arm equipped with a gripper. This mechanical system provides contact-based grasping without introducing harmful magnetic fields, thus resolving the contradiction between achieving sufficient grasping force and avoiding adverse effects on magnetically sensitive assemblies.
2Force
If vacuum force is used to grasp the assembly, then grasping capability is improved, but assemblies with insufficient area or excessive weight cannot be securely grasped
Solution Approach 1:
The robotic arm with programmable gripper provides dynamic and adaptable grasping capability. The system can adjust its grasping force and position based on the specific characteristics of each assembly, enabling it to securely grasp objects with varying weights and surface areas that would be unsuitable for fixed vacuum force systems.
3Extent of automation
If actuators are added to the drone, then automated payload handling is improved, but drone weight and complexity increase
Solution Approach 1:
The system segments the automated handling function into a separate, modular robotic arm assembly that can be independently controlled. This allows the drone to maintain its core flight functions while adding automated payload handling capability through a distinct mechanical module, thereby managing complexity through functional separation.
4Extent of automation
If actuators are added to the drone, then automated payload handling is improved, but delivery range is limited by additional weight and energy costs
Solution Approach 1:
The system uses a tether as an intermediary element connecting the ground station to the drone. The tether provides mechanical support and payload transfer capability, allowing the drone to maintain lighter weight by offloading some of the structural and actuation requirements to the ground-based infrastructure, thereby extending delivery range despite automated handling capabilities.
Data Source
AI summary
Provided is a hook, a latch, and a pick-and-place system. The hook, in one aspect, includes an elongated member having a first end and a second end, as well as two or more pins coupled proximate the first end of the elongated member. The hook, according to this aspect, further includes one or more elongated lugs positioned substantially parallel with the elongated member between the two or more pins and the second end.


