Open Frame Revolver Drum Access via Pivoting Upper and Lower Segments
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Solution Overview
Problem
Existing revolvers, particularly the open frame type, face challenges in maintaining rigidity and accuracy due to the hinged frame design, which compromises structural integrity and handling.
Innovation Solution
The design incorporates an upper and lower frame that are pivotally connected at the front, with a drum housing located between the rear parts of the frames. This configuration includes a spring assembly and trigger mechanism within the lower frame, and a hammer axle supported by the upper frame, allowing for a more rigid structure while maintaining ease of operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hinged frame design is used to allow drum removal, then ease of operation is improved, but structural rigidity and accuracy deteriorate
Solution Approach 1:
The frame is divided into upper and lower segments that can pivot relative to each other. The upper frame contains the barrel and hammer, while the lower frame holds the trigger and grip. This segmentation allows the drum to be accessed by pivoting the upper frame away, providing ease of operation while maintaining structural integrity when closed.
Solution Approach 2:
The frame transitions from a static rigid structure to a dynamic pivoting structure. The upper frame can pivot on a hinge axis to open and close, allowing the drum to be removed or accessed. This dynamic capability enables easy drum removal while the closed position maintains rigidity for accurate shooting.
2Ease of operation
If a hinged frame design is used to allow drum removal, then ease of operation is improved, but accuracy deteriorates
Solution Approach 1:
By separating the frame into upper and lower sections with a hinge connection, the design allows the upper frame to pivot open for drum access while maintaining a rigid closed structure during firing, thereby preserving accuracy.
Solution Approach 2:
The patent employs a rigid closed frame structure that maintains precision during shooting, accepting that the frame opens temporarily for drum removal. The rigidity is maintained during the critical firing moments, ensuring accuracy is not compromised.
3Strength
If a rigid frame is used to maintain structural integrity, then strength is improved, but ease of operation deteriorates
Solution Approach 1:
The frame is segmented into pivotable upper and lower sections, allowing the upper frame to swing open for drum access. This maintains overall structural integrity while providing easy drum removal capability.
Solution Approach 2:
The frame incorporates a hinge mechanism that allows dynamic opening and closing of the upper frame. This provides easy drum removal when needed while maintaining a rigid structure during firing operations.
Data Source
AI summary
An open frame revolver may have an upper frame and lower frame pivotally connected together, an opening located in between the upper frame and the lower frame. A spring assembly may be located in the lower frame and a trigger assembly located in the lower frame, wherein the trigger assembly is connected to the spring assembly. A tension axle located in the lower frame, wherein the tension axle on one end connected to the trigger assembly and spring assembly and on the other end has a lock. A hammer axle may be located inside a drum, wherein the drum could be pivotally supported by hammer axel and hammer axle may have a lock on one end. A hammer may be located outside of the upper frame connected to the hammer axle, a safety lock located in the lower frame, while a frame lock located on the lower frame.