Removable Folding Primer Tray with Viewing Windows and Valve Switch
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Solution Overview
Problem
Current reloading systems lack a practical solution for a removable one-piece folding primer feeding tray with viewing windows to determine primer quantity and a top accessible dispensing valve to control primer flow to a primer actuation device.
Innovation Solution
A removable one-piece folding primer feeding tray with a triangular tray and cover portions connected by a double living hinge, featuring viewing windows and a valve switch with open, locked, and 'on' positions to manage primer dispensing, along with a feed adapter for primer actuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a removable one-piece folding primer feeding tray with viewing windows is designed, then the ability to determine primer quantity is improved, but the device complexity increases
Solution Approach 1:
The tray is divided into a tray portion and a cover portion that can be folded relative to each other via a double living hinge. This segmentation allows the viewing windows to be positioned on the cover portion while maintaining a compact folded state, enabling primer quantity visualization without proportionally increasing overall device complexity.
Solution Approach 2:
The viewing windows are positioned on the cover portion rather than the tray bottom, utilizing the vertical dimension when the cover is folded over. This allows primer quantity determination through side viewing rather than bottom viewing, achieving the measurement function without adding horizontal space or complexity.
2Measurement precision
If a top accessible dispensing valve is added to control primer flow, then the control precision is improved, but the device complexity increases
Solution Approach 1:
Instead of accessing the dispensing valve from the bottom or side of the tray, the valve is positioned on the top surface of the cover portion. This inverted accessibility approach allows direct thumb control of primer flow from above, improving control precision while keeping the valve mechanism simple and integrated into the cover.
Solution Approach 2:
The dispensing valve is designed to be directly actuated by the user's thumb without requiring additional tools or complex mechanisms. The valve serves itself through simple manual pressure, achieving precise flow control while minimizing the complexity of the control system.
3Ease of operation
If the tray is designed to be removable and foldable, then the ease of operation is improved, but the reliability of primer feeding may worsen
Solution Approach 1:
The cover portion folds over and nests against the tray portion, with the double living hinge providing a stable connection. This nested configuration maintains a compact, reliable structure that prevents primer misalignment while allowing easy removal and reattachment of the entire tray assembly.
Solution Approach 2:
The double living hinge acts as an intermediary mechanism between the tray portion and cover portion. It provides controlled movement and stable positioning, ensuring that the relative positions of the primer feed surfaces remain consistent during folding and unfolding, thus maintaining feeding reliability while enabling easy operation.
Data Source
AI summary
A removable one piece folding primer feeding tray preferably includes a feed tray and a valve switch. The feed tray includes a tray portion, a cover portion and a feed channel. A tray edge of the tray portion is preferably pivotally connected to the cover portion. The cover portion includes two opposing cover side walls, which are spaced apart to receive an outside perimeter of the two opposing tray side walls. The feed channel extends from an opposing edge of the tray portion. The valve switch is slidably engaged with the feed tray. The valve switch controls the flow of primers and locks the cover portion to the tray portion. A feed adapter is retained in a hand held or bench mounted primer actuator and receives the primers from the removable folding primer tray and the lifts primers for pressing into a cartridge.