Locking Block Positioning Grooves for Gun Spring Stability

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Solution Overview

Problem

Conventional gun locking blocks experience instability due to sliding bias and return spring arms, which vary in resilient force and can interfere, affecting gun performance.

Innovation Solution

A locking block design with a connecting body featuring upwardly recessed positioning grooves to securely catch the bias and return spring arms, preventing sliding and interference, ensuring stable resilient forces on the slide stop lever and trigger.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the bias spring arm and return spring arm are merely in contact with the bottom side of the connecting body without being secured, then the structure is simple and easy to manufacture, but the resilient force becomes unstable and the components may interfere with each other

Engineering Contradiction:

Improveease of manufactureVSAvoidstability of resilient force

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The connecting body is divided into multiple functional surfaces: a bottom side for receiving spring arms, and upwardly extending side surfaces that form positioning grooves. This segmentation allows the spring arms to be securely positioned in the grooves while maintaining manufacturing simplicity through integrated forming of the positioning features.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The positioning grooves formed by the upwardly extending side surfaces act as intermediary structures that mediate between the spring arms and the connecting body. These grooves provide secure engagement for the spring arms, preventing sliding and interference while maintaining the simplicity of the overall structure.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If the bias spring arm and return spring arm are secured to the connecting body, then the resilient force becomes stable and interference is prevented, but the structure becomes more complex and manufacturing becomes more difficult

Engineering Contradiction:

Improvestability of resilient forceVSAvoidease of manufacture

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The positioning grooves are merged into the connecting body as an integrated feature formed by the upwardly extending side surfaces. This combining of the positioning function into the existing connecting body structure achieves secure spring arm engagement without adding separate securing components, thus maintaining manufacturing simplicity while improving reliability.

Inventive Principle:

Principle #5Merging (Combining)

3Device complexity

If the spring arms are allowed to slide against the bottom side of the connecting body, then the structure remains simple, but the resilient force varies and performance is negatively impacted

Engineering Contradiction:

Improvedevice complexityVSAvoidstability of resilient force

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The solution transitions from a one-dimensional contact surface (bottom side only) to a two-dimensional positioning structure by adding upwardly extending side surfaces that form grooves. This dimensional expansion provides lateral constraint for the spring arms, preventing sliding while maintaining structural simplicity and achieving stable resilient force.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS12259206B2Locking block for a gun

Publication Date: 2025.03.25 TAI CHEN HUNG

AI summary

A locking block is adapted to be mounted in a gun. The gun has a bias spring having a bias spring arm. The locking block includes two side bodies and a connecting body. The connecting body is connected between the two side bodies and has a bottom surface. The connecting body is formed with at least one positioning groove recessed upward from the bottom surface for catching the bias spring arm of the bias spring.