Trigger Switch Dual-Wall Stopper Alignment
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Solution Overview
Problem
Conventional trigger switches experience instability and structural complications when the trigger is forcibly pulled, leading to the stopper member being forced into the guide slot, causing the trigger and stopper shaft to become oblique, and requiring additional metal plates that increase component count and complexity.
Innovation Solution
A trigger switch design featuring stopper mechanisms on both wall surfaces with first and second stopper holes and guide slots, a stopper shaft with lock and guide portions of specific diameters, and a return spring to ensure stable locking and unlocking of the trigger without additional metal plates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a stopper member is abutted against a guide slot formed in one wall surface to stop the trigger from being pulled in, then the trigger can be stopped, but the trigger and stopper shaft become oblique when forcibly pulled, causing instability and potential destruction of the guide slot
Solution Approach 1:
The invention transitions from a single-wall surface stopper mechanism to a dual-wall surface mechanism. The stopper shaft engages with guide slots and stopper holes formed in both first and second wall surfaces simultaneously, adding a dimensional constraint that prevents oblique movement and maintains proper alignment during the stopping operation.
Solution Approach 2:
The invention combines multiple stopping functions into a single integrated stopper shaft assembly. The stopper shaft simultaneously engages with guide slots and stopper holes in both wall surfaces, merging the guiding and stopping functions into one unified mechanism that operates together to prevent trigger pull-in while maintaining alignment.
2Reliability
If additional metal plates are added to improve the stopping mechanism, then the triggering can be stopped, but the structure becomes more complex and the number of components increases
Solution Approach 1:
The invention merges the stopper member and its supporting structure into the existing trigger assembly. The stopper shaft is integrated with the trigger body, and the guide slots and stopper holes are formed directly in the wall surfaces of the trigger, eliminating the need for separate metal plates and reducing the overall component count.
Solution Approach 2:
The trigger assembly is designed to serve multiple functions: it acts as both the operating lever and the support structure for the stopping mechanism. The wall surfaces of the trigger itself provide the guide slots and stopper holes, making the trigger structure universal and eliminating the need for additional specialized components.
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
The design provides a stable locking mechanism that prevents the trigger from becoming oblique during pull-in operations, enhancing the trigger's strength and reducing structural complexity by eliminating the need for extra metal plates.
Implementation Method 1
a return spring 117 accommodated inside the trigger 116. The spring 117 acts to return the pulled trigger to its original state.
Data Source
AI summary
Disclosed a trigger switch having a trigger to be locked stably when it is pulled in. The trigger has wall surfaces disposed oppositely leaving a space therebetween. Pivotal holes are formed in the wall surfaces and a pivotal shaft is inserted in said holes. Rotary shaft holes are formed in the wall surfaces, and a rotary shaft for inverting a switch is inserted in the rotary shaft holes. A stopper for stopping the trigger from being pulled while rotating about the pivotal shaft is mounted between the pivotal shaft and the rotary shaft. The stopper includes a stopper shaft engaged in stopper holes formed in the wall surfaces. A stopper button is mounted at an end of the stopper shaft. When the stopper button is pushed, the stopper shaft is moved to place a thinned portion thereof into the stopper holes, thus releasing the trigger from the stopper.