Rotary Bullet Feeder With Sorting Bridge for Multi-Caliber Reloading
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Solution Overview
Problem
Existing bullet feeders are limited in their ability to handle multiple calibers and bullet shapes without requiring significant modifications, and often have complex components that hinder versatility and efficiency.
Innovation Solution
A bullet feeder design featuring a rotary ring with pockets and a sorting bridge that utilizes the conical shape of bullets to orient them correctly, allowing adaptation to different calibers and shapes without adjustments, and includes a compact, inexpensive mechanism for automatic feeding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a bullet feeder uses a rotary ring with tapered pockets to orient bullets correctly, then bullet orientation accuracy is improved, but the device cannot be used for several different cartridge calibres without major modifications
Solution Approach 1:
The patent applies universality by designing the rotary ring with pockets of uniform diameter rather than tapered dimensions. This allows the same rotary ring to accommodate multiple cartridge calibres (e.g., 9mm and 10mm) without major modifications. The pockets are shaped to receive bullets of different calibres while maintaining correct orientation through the sorting bridge mechanism, enabling one feeder to serve multiple functions across different calibre ranges.
2Manufacturing precision
If a bullet feeder uses a conveyor ring with grooves and a bullet-orienting structure to flip misoriented bullets, then bullet orientation is improved, but the system has many components and does not allow use for a wide range of calibres without changing the conveyor ring
Solution Approach 1:
The patent merges the bullet reception and orientation functions into a single integrated rotary ring structure with pockets. Instead of separate conveyor ring and orienting structure, the rotary ring itself provides both bullet reception and orientation capabilities through its pocket design and rotation mechanism. The sorting bridge works in conjunction with the rotary ring to flip misoriented bullets, combining multiple functions into fewer components and simplifying the overall system.
3Ease of operation
If a bullet feeder uses tapered pockets to allow only correctly oriented bullets to enter, then bullet orientation control is improved, but the device requires major modifications for different calibres
Solution Approach 1:
The rotary ring is designed with universal pockets of consistent diameter that can receive bullets of different calibres. The automatic orientation control is achieved through the sorting bridge mechanism that flips misoriented bullets during rotation, rather than relying on tapered pocket dimensions. This universal design allows the same feeder to be used for multiple calibres without major modifications, while maintaining automatic orientation control through the sorting action.
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 efficient and adaptable automatic bullet orientation for various calibers and shapes, enhancing compatibility and reducing the need for manual adjustments, while maintaining a compact and cost-effective design.
Implementation Method 1
The feeder of the invention sorts the bullets from a bullet hopper so that the incorrectly oriented bullets fall back into the container by gravity and the correctly oriented bullets move along a guide by gravity to a bullet feeder die
Data Source
AI summary
The object of the invention is a bullet feeder for use in ammunition reloading devices. The bullet feeder of the invention comprises a static support (1), a rotary ring (2) provided with pockets (3) for receiving bullets (4), a container (5) for bullets (4), a sorting bridge (6), a guide (7) for conveying the correctly oriented bullets (4) to a die (40) for inserting bullets (4) into a cartridge case and a drive (8) of the rotary ring (2). The feeder of the invention, with its appropriately shaped pockets (3) and sorting bridge (6), exploits the shape of the bullet (4) to position it correctly in the position of insertion. Due to the specific shape and positioning of the sorting bridge (6), the bullet feeder of the invention can be easily adapted to different calibres and different shapes of bullets.