Packaging Fastener Lock-Claw Release for Faster Unpacking
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Solution Overview
Problem
Conventional packaging fasteners require significant force to release engagement due to impact during transportation, and users find it difficult to intuitively understand how to remove them, often necessitating explanatory drawings and increasing unpacking time.
Innovation Solution
A packaging fastener design featuring a base member with a U-shaped supporting part and lock claw that can be elastically deformed to release engagement, allowing easy disengagement by finger manipulation, and a configuration that prevents foreign matter entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the engagement projection is firmly engaged with the slit to prevent release during transportation, then the reliability of engagement is improved, but a large force is required to release the engagement, deteriorating the ease of operation
Solution Approach 1:
The supporting part is designed to be elastically deformable, allowing the lock claw to dynamically adjust its position. During normal conditions, the lock claw maintains firm engagement for reliability. During release, the supporting part can be elastically deformed to disengage the lock claw, reducing the force needed for operation.
Solution Approach 2:
The physical state of the supporting part changes from a rigid locked position to an elastically deformed state during release. This parameter change allows the system to transition from a high-engagement-force state to a low-release-force state, resolving the contradiction between engagement stability and ease of release.
2Strength
If conventional packaging fasteners are used, then the coupling strength is sufficient, but the removal process requires explanatory drawings and time, reducing productivity
Solution Approach 1:
The fastener design allows users to intuitively understand and perform the release operation without external instructions or explanatory drawings. The self-explanatory design enables users to quickly grasp the removal mechanism, significantly improving unpacking speed and productivity while maintaining coupling strength.
3Reliability
If the key member is firmly locked to the base member, then the reliability during transport is improved, but the device complexity increases due to additional engagement mechanisms
Solution Approach 1:
The complex multi-component engagement mechanisms are extracted and replaced with a simplified design featuring a single elastically deformable supporting part and lock claw system. This extracted design maintains reliable engagement during transport while significantly reducing overall device complexity and the number of parts.
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
Enhances operational efficiency by securely maintaining engagement during transport and simplifies the unpacking process without requiring explanatory drawings, while preventing dust and insect entry into the packaging box.
Implementation Method 1
a supporting part that is elastically deformable and has a U-shape in a side view, connected to the third opening edge and extending toward a fourth opening edge opened on the other end side of the second cylindrical part
Data Source
AI summary
A packaging fastener includes a base member and a key member. The base member includes a first cylindrical part inserted through overlapped through holes of packaging materials. The key member includes a second cylindrical part inserted into the first cylindrical part of the base member. By inserting the first cylindrical part of the base member through the through holes and then inserting the second cylindrical part into the first cylindrical part, the packaging materials are coupled together. The key member has an engaging part. The base member has an engaged part. The engagement part has an elastically deformable supporting part and a lock claw. In a state where the lock claw is engaged with the engaged part, by elastically deforming the supporting part, the lock claw is displaced to a direction separate away from the engaged part to release an engagement of the lock claw with the engaged part.


