Toy Gun Gas Cartridge Loading Device Single-Action Detachment

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Solution Overview

Problem

Existing toy guns with detachable gas cartridge loading devices require two separate actions to detach the device, making it cumbersome and prone to gas leakage, which can cause the device to jump out during removal.

Innovation Solution

A mechanism where the first lock and second lock interlock, allowing the gas cartridge loading device to be detached by a single user action of pushing the first lock and releasing it sequentially, ensuring safe and easy replacement without gas leakage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a double-step mechanism is used to detach the gas cartridge loading device, then the device can be securely locked during attachment, but the detachment process becomes cumbersome and requires two separate actions

Engineering Contradiction:
Improvesecure lockingVSAvoiddetachment process
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent combines the functions of the first lock and second lock into a single integrated locking mechanism. The first lock and second lock are merged such that operating the first lock automatically triggers the disengagement of the second lock, reducing the detachment process to a single user action while maintaining secure locking during attachment

Inventive Principle:
Principle #5Merging (Combining)

2Ease of operation

If the gas cartridge loading device is detached without proper locking control, then the detachment process is simple, but residual compressed gas causes the device to jump out quickly

Engineering Contradiction:
Improvedetachment simplicityVSAvoidgas leakage causing device to jump out
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent implements preliminary locking control where the first lock and second lock must be properly disengaged in a controlled sequence before the gas cartridge loading device can be removed. This preliminary action prevents premature detachment that would cause residual compressed gas to expel the device quickly, while still allowing simple operation through the integrated lock mechanism

Inventive Principle:
Principle #10Preliminary action

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 simplifies the detachment process, improving operability and user-friendliness while preventing the device from jumping out during replacement, ensuring safe handling and maintaining the toy's resemblance to a real gun without compromising its commercial value.

Implementation Method 1

a bar-like member which is attached midway to a lateral surface of the loading device housing by a bar-like member rotating shaft for allowing an upper end and a lower end thereof to freely rotate inward of the loading device housing or outward of the loading device housing

Methodology Applied
Scientific EffectRotation:

Implementation Method 2

with the upper end biased inward of the loading device housing

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP2803935B1Toy gun and toy gun gas cartridge loading device
Publication Date: 2017.08.23 MARUZEN
  • EP2803935B1 patent drawingFigure 1
  • EP2803935B1 patent drawingFigure 2
  • EP2803935B1 patent drawingFigure 3~4

AI summary

A toy gun which makes it possible to detach a gas cartridge loading device from a toy gun body simply by a single sequential user action instead of two user actions, namely pushing a first lock and then pushing a second lock is provided. The toy gun includes a toy gun body and a toy gun gas cartridge loading device to be attached to the toy gun body. The toy gun body has a loading device housing located around a gun body coupling valve. When attaching the toy gun gas cartridge loading device to the toy gun body with an end portion of the device inserted in the loading device housing of the toy gun body, a lock of the loading device is locked with a first lock of the gun body, and when detaching it from the toy gun body, the lock of the loading device is locked with a gun body second lock.