Staple Gun With Interchangeable Box Components and Secure Locking

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Solution Overview

Problem

Existing nail guns have different nail box parts for different nail specifications, leading to increased purchase costs and limited versatility.

Innovation Solution

A detachable nail box component with alignment and locking structures that allows multiple interchangeable nail box components to fit a single gun body, facilitating easy replacement and use with various nail types.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If different nail box parts are used for different nail specifications, then the nail gun can accommodate various nail types, but the purchase costs increase and device complexity increases

Engineering Contradiction:
Improvecompatibility with different nail specificationsVSAvoidnumber of different nail box components
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The gun body is designed with a universal interface that can accommodate multiple types of nail box components through a standardized detachable connection mechanism. The connection structure includes alignment features and locking mechanisms that work with different nail box designs, allowing one gun body to perform multiple functions with different nail specifications.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The nail gun is divided into separable modules: a reusable gun body and interchangeable nail box components. This segmentation allows users to replace only the nail box part when changing nail specifications, rather than replacing the entire tool, thereby reducing overall system complexity and cost.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If different nail box parts are used for different nail specifications, then the nail gun can accommodate various nail types, but the purchase costs increase

Engineering Contradiction:
Improvecompatibility with different nail specificationsVSAvoidnumber of components to be purchased
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The gun body serves as a universal platform that can work with multiple types of nail box components. Users purchase one gun body and multiple interchangeable nail box components, reducing the total number of complete tools needed and lowering overall purchase costs.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the common functional elements (power source, firing mechanism, trigger system) into a single reusable gun body, while separating the specification-specific elements into interchangeable nail box components. This merging reduces redundancy and decreases the total quantity of components users must purchase.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If detachable connection is used for nail box component, then the nail box component can be easily replaced, but the connection reliability may be compromised

Engineering Contradiction:
Improveease of replacing nail box componentVSAvoidconnection stability between nail box component and gun body
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The connection structure includes pre-designed alignment features (such as guide rails, positioning pins, or shaped interfaces) that automatically align the nail box component with the gun body during attachment. This preliminary alignment ensures proper positioning before the locking mechanism engages, maintaining connection reliability while keeping the attachment process simple.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The locking mechanism is designed to automatically secure the nail box component to the gun body upon proper insertion, without requiring additional fastening steps. The alignment features guide the component into the correct position, and the locking structure engages automatically, providing both ease of operation and reliable connection.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP4112229B1Staple box component, staple gun, and method for replacing staple box component of staple gun
Publication Date: 2025.08.06 HANGZHOU GREAT STAR IND CO LTD
  • EP4112229B1 patent drawingFigure 1
  • EP4112229B1 patent drawingFigure 2~3
  • EP4112229B1 patent drawingFigure 4~5

AI summary

The present invention relates to a nail box component, a nail gun, and a method for replacing a nail box component of a nail gun. The nail gun comprises a gun body and a nail box component, wherein the nail box component is provided with a nail accommodating cavity and a nailing channel, the nailing channel being in communication with the nail accommodating cavity; the nail accommodating cavity is used to accommodate nails, and the nailing channel is used to provide a channel through which a nail is launched out of the nail box component; and the nail box component is detachably connected to the gun body. According to the nail box component, the nail gun, and the method for replacing a nail box component of a nail gun of the present invention, multiple nail box components fit with the same gun body in a same connection manner, and the nail box components are detachable and replaceable, such that one gun body can be equipped with multiple nail box components, and each nail box component holds one specification of nails, which can not only reduce the purchase cost of users, but also satisfy the needs of quickly changing nails of different models.