Toy Gun Barrel Catch Sliding Mechanism for Easy Replacement

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Solution Overview

Problem

Toy guns often have rigidly attached barrels, making it difficult to replace or maintain them, and the attachment of silencers can compromise the strength and appearance of the gun.

Innovation Solution

A toy gun design featuring a barrel catch system with a sliding mechanism and curved cross-sectional fittings allows for easy barrel replacement and attachment of a silencer, enabling the use of various barrel lengths and enhancing product diversity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the barrel is rigidly attached to the toy gun body, then the structural strength is improved, but the ease of maintenance and replacement deteriorates

Engineering Contradiction:

Improveattachment strengthVSAvoidbarrel replacement ease

Core Design Contradiction:

StrengthVSEase of repair

Solution Approach 1:

The attachment mechanism is segmented into a barrel catch with a pressing portion and a barrel fitting portion. The pressing portion can be selectively actuated to release the barrel from the fitting portion, allowing easy removal while maintaining strong attachment during normal use. This segmentation enables independent control of the attachment state without compromising overall structural integrity.

Inventive Principle:

Principle #1Segmentation

2Stability of the object's composition

If the barrel is rigidly attached to the toy gun body, then the structural stability is improved, but the adaptability for different barrel lengths deteriorates

Engineering Contradiction:

Improvestructural stabilityVSAvoidbarrel length variation

Core Design Contradiction:

Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The attachment mechanism transitions from a static rigid connection to a dynamic可控 connection. The barrel catch can be switched between locked and unlocked states, allowing the barrel to be firmly attached for stability during operation or easily removed for replacement with different barrel lengths. This dynamic capability enables adaptability while maintaining structural stability when needed.

Inventive Principle:

Principle #15Dynamics

3Adaptability or versatility

If the outer barrel is threaded for silencer attachment, then the silencer attachment capability is improved, but the appearance quality and joint strength deteriorate

Engineering Contradiction:

Improvesilencer attachment capabilityVSAvoidappearance quality

Core Design Contradiction:

Adaptability or versatilityVSShape

Solution Approach 1:

The silencer attachment function is extracted from the outer barrel's threaded structure and integrated into the barrel catch mechanism. The pressing portion of the barrel catch serves dual purposes: securing the barrel to the gun body and providing attachment points for the silencer. This eliminates the need for separate threading on the outer barrel, preserving its smooth appearance while maintaining silencer attachment capability through the unified catch mechanism.

Inventive Principle:

Principle #2Taking out (Extraction)

4Adaptability or versatility

If the outer barrel is threaded for silencer attachment, then the silencer attachment capability is improved, but the joint strength deteriorates

Engineering Contradiction:

Improvesilencer attachment capabilityVSAvoidjoint strength

Core Design Contradiction:

Adaptability or versatilityVSStrength

Solution Approach 1:

The barrel attachment function and silencer attachment function are merged into a single integrated barrel catch mechanism. The pressing portion and fitting portion work together to provide both secure barrel retention and robust silencer attachment. This unified structure ensures that the joint strength is maintained through the engineered fit between the catch components, rather than relying on potentially weak threaded connections on the outer barrel.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP3674651B1Toy gun, toy gun barrel, and barrel catch

Publication Date: 2023.03.29 MARUZEN

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AI summary

A toy gun in which easy replacement of the barrel is enabled. A barrel catch of the toy gun has a barrel through hole with diameter larger than outer circumference of the barrel so that the barrel penetrates the barrel through hole center. The barrel catch includes a barrel fitting portion fitted/attached to the barrel on the inner circumference of the hole opposite to the pressing portion exposed from an opening in a barrel attachment portion of the toy gun body. The barrel catch is housed in a barrel catch housing portion of the toy gun body slidably in the direction defined by the pressing portion and the opposite portion of the pressing portion. The barrel includes a barrel catch fitting portion fittable to the barrel fitting portion of the barrel catch upon penetration of the barrel through the barrel catch. The barrel slidably penetrates the barrel through hole of the barrel catch in the direction defined by the pressing portion and the opposite portion.