Air Gun Magazine Ejector with Elastic Mediator

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Solution Overview

Problem

Conventional air gun magazine ejector structures face issues with external appearance damage and operational malfunctions due to exposed magazine bodies and gaps that allow foreign matter infiltration, leading to potential malfunctions and foreign matter accumulation.

Innovation Solution

The air gun magazine ejector structure allows complete insertion of the magazine into the air gun body, eliminating external exposure and utilizing an elastic member to eject the magazine without a large gap, minimizing foreign matter infiltration and operational malfunctions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the magazine body is exposed from the air gun body, then the magazine can be easily ejected, but the external appearance is detrimentally affected and foreign bodies may infiltrate

Engineering Contradiction:
Improvemagazine ejectionVSAvoidforeign body infiltration
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent introduces an intermediary mechanism (ejection button connected to elastic member) that enables magazine ejection without requiring the magazine body to be exposed. The elastic member stores energy when the magazine is inserted and releases it when the ejection button is pressed, providing ejection force through a controlled mechanism rather than direct exposure.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The magazine is completely nested within the air gun body's magazine holding section, with only the ejection button exposed on the external surface. This nesting arrangement eliminates the need for the magazine body to protrude while maintaining the ability to eject it through the nested ejection mechanism.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Ease of operation

If a gap is provided between the magazine holding section and magazine body, then the magazine can drop under its own weight, but foreign matter can infiltrate and cause operational malfunctions

Engineering Contradiction:
Improvemagazine ejectionVSAvoidoperational malfunction
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The elastic member acts as an intermediary that provides the necessary ejection force, eliminating the need for a gap between the magazine holding section and magazine body. The elastic member is compressed during magazine insertion and releases stored energy to eject the magazine when triggered, providing a reliable gap-free interface.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The elastic member is pre-compressed during magazine insertion, storing potential energy in advance. This preliminary action ensures that when ejection is needed, the stored energy is immediately released to eject the magazine, eliminating the need for gravitational drop mechanisms that require gaps.

Inventive Principle:
Principle #10Preliminary action

3Object-affected harmful factors

If the magazine is completely inserted into the magazine holding section, then the external appearance is improved, but the magazine needs a larger gap for ejection which increases foreign matter infiltration risk

Engineering Contradiction:
Improveforeign body infiltrationVSAvoidejection mechanism
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The ejection button serves as an external intermediary that transmits user input to the internal elastic member mechanism. This allows the magazine to be completely inserted while maintaining ejection capability through a separate control interface, avoiding the need for exposed magazine portions or large gaps.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The ejection function is extracted from the magazine body itself and implemented through a separate button mechanism on the air gun body. This separation allows the magazine to be fully inserted while the ejection action is performed through an independent control element, eliminating the trade-off between insertion depth and ejection capability.

Inventive Principle:
Principle #2Taking out (Extraction)

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

This solution enhances the air gun's external appearance and reduces operational malfunctions by ensuring the magazine is fully enclosed, preventing foreign matter entry and improving reliability.

Implementation Method 1

an elastic member (15) capable of being compressed when the magazine (M) is inserted into the air gun body (A) and of ejecting the magazine (M) from the air gun body (A)

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP2031340B1Magazine ejector structure for air gun
Publication Date: 2011.09.21 MARUZEN
  • EP2031340B1 patent drawingFigure 1~2
  • EP2031340B1 patent drawingFigure 3~4
  • EP2031340B1 patent drawingFigure 5~6

AI summary

A magazine (M) has a magazine body (1) provided with a rotary clip (2), and the magazine body (1) comprises an ejector member (4) capable of movement, an ejector elastic member (5) provided on the ejector member (4) and being capable of expansion and contraction, and an engagement indent (3) section capable of being engaged with a magazine catch (9) at the time of loading the magazine into the air gun body, and the air gun body has a magazine ejector structure with the magazine catch (9) that is urged by a catch elastic member (10) to the magazine holding section and capable of engaging with the engagement indent (3) section of the magazine, and a stopper (8) that is capable of pressing part of the ejector member.