1911 Trigger Shoe Assembly With Front Threaded Replacement
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Solution Overview
Problem
Existing 1911 type handgun triggers require disassembly for replacing the trigger shoe, which is cumbersome and introduces structural limitations, particularly with screw placement affecting overtravel prevention and geometry.
Innovation Solution
A trigger assembly with a trigger bow and shoe secured by a rotatable threaded fastener, allowing easy interchangeability without disassembly, featuring a threaded receptacle and aperture for the magazine, and a fastener with opposing threaded portions for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the trigger shoe is manufactured as part of the initial handgun assembly with a fixed trigger bow, then the structural integrity and manufacturing precision are improved, but the adaptability and ease of operation for replacing trigger shoes deteriorate
Solution Approach 1:
The trigger assembly is divided into separate components: a trigger bow with an internally threaded receptacle and a trigger shoe with an externally threaded fastener. This segmentation allows the trigger shoe to be independently removed and replaced while maintaining the integrity of the trigger bow, resolving the contradiction between structural integration and component interchangeability
2Adaptability or versatility
If a removable trigger shoe design is implemented using lateral shifting and retaining screws, then the adaptability for different trigger shapes is improved, but the device complexity and ease of manufacture deteriorate
Solution Approach 1:
The complex lateral shifting mechanism and multiple retaining screws are extracted and replaced with a simple threaded fastener system. The externally threaded fastener on the trigger shoe directly engages with the internally threaded receptacle on the trigger bow, eliminating the need for lateral shifting and multiple screws, thus reducing device complexity while maintaining adaptability
Data Source
AI summary
A trigger assembly for a 1911 format pistol comprising of a trigger bow having a forward portion defining a first threaded portion, a threaded fastener having a second threaded portion mateable with the first threaded portion, and a trigger shoe configured to operably engage the threaded fastener to secure the trigger shoe to the trigger bow.