Quick-Release Fastener Structure for Strong Yet Easy Unfastening

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Solution Overview

Problem

Conventional fastening methods require screws that make objects inseparable but difficult to unfasten, lacking ease of coupling and unfastening.

Innovation Solution

A fastener structure comprising a head portion and a rod member with a fitting member, where the head portion drives the rod member to fasten or disengage, enabling quick coupling and easy unfastening through a resilient component and fitting mechanism.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If screws are used to fasten two objects together, then the coupling strength and inseparability are improved, but the ease of unfastening deteriorates

Engineering Contradiction:
Improvecoupling strengthVSAvoidease of unfastening
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The fastener is divided into separate components: a fastening component with a head portion and a rod member. The rod member can be inserted into and removed from the head portion, allowing the fastener to be assembled and disassembled easily while maintaining strong coupling when engaged.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The fastener transitions from a static screw thread engagement to a dynamic insertion/removal mechanism. The rod member can be dynamically inserted into the head portion for fastening and removed for unfastening, providing both strong coupling and ease of operation.

Inventive Principle:
Principle #15Dynamics

2Stability of the object's composition

If screws are used to fasten two objects together, then the firmness of coupling is improved, but the ease of coupling deteriorates

Engineering Contradiction:
Improvefirmness of couplingVSAvoidease of coupling
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The fastener is segmented into a head portion and a rod member that can be easily assembled by inserting the rod into the head. This simple assembly process maintains firm coupling once engaged, without requiring complex threading operations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The fastener structure allows for self-aligned insertion of the rod member into the head portion. The complementary geometries of the rod and head receptacle guide proper alignment during assembly, making coupling easy while ensuring firm connection.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If a simple fastener structure is used, then the ease of operation is improved, but the reliability of fastening deteriorates

Engineering Contradiction:
Improveease of useVSAvoidreliability of fastening
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The fastener incorporates localized features such as a pressing portion with higher hardness than the head portion material, and a material entering portion that receives extruded material. These localized quality enhancements ensure reliable fastening at critical points while maintaining overall structural simplicity.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The fastener uses composite construction with a head portion made of one material and a pressing portion made of a harder material. This composite approach provides both ease of operation and reliable, durable fastening by combining materials with different properties in appropriate locations.

Inventive Principle:
Principle #40Composite materials

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

Facilitates quick coupling and easy unfastening of objects by allowing the head portion to drive the rod member, enhancing usability and efficiency in assembly and disassembly processes.

Implementation Method 1

material of the head portion is extruded by the pressing portion and enters the material entering portion, wherein hardness of the pressing portion is greater than hardness of the head portion

Methodology Applied
Scientific EffectPlastic deformation: Plasticity

Data Source

PatentUS20240151257A1Fastener structure and assembling method thereof
Publication Date: 2024.05.09 WANG TING JUI
  • US20240151257A1 patent drawing
  • US20240151257A1 patent drawing
  • US20240151257A1 patent drawing

AI summary

A fastener structure and an assembling method thereof are introduced, the fastener structure includes a head portion, rod member and fitting member. The head portion has a lateral holding portion and vertical receiving portion. The rod member has a lateral attaching portion and engaging member. The rod member is penetratingly disposed at the receiving portion to allow the attaching portion to correspond in position to the holding portion. The fitting member is penetratingly disposed at the attaching portion and the holding portion to fit the head portion and the rod member together. To couple two objects together, the head portion drives the rod member to fasten or disengage, so as to achieve quick coupling and easy unfastening.